Update CI/CD pipelines, deps, build procedures (#2)

Signed-off-by: Igor Shishkin <me@teran.dev>

.github/ISSUE_TEMPLATE/bug-report.md

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+---
+name: Bug Report
+about: Create a report to help us improve
+title: "[BUG] "
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. ...
+2. ...
+3. ...
+4. ...
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[FEATURE REQUEST] "
+labels: enhancement
+assignees: ''
+
+---
+
+**What is your use case?**
+What real problem are you trying to solve?
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/workflows/release.yml

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+---
+name: release
+
+on:
+  push:
+    tags:        
+      - 'v*'
+
+jobs:
+  markdownlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: articulate/actions-markdownlint@v1
+
+  unittests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22.x'
+      - name: Install dependencies
+        run: go mod download
+      - name: Test with the Go CLI
+        run: go test ./...
+      - name: Build
+        run: go build -v ./...
+
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      packages: write
+    needs:
+      - markdownlint
+      - unittests
+    steps:
+      - name: Define build timestamp
+        id: timestamp
+        run: echo "::set-output name=now::$(date -u +'%Y%m%d%H%M%S')"
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22.x'
+      - name: Install dependencies
+        run: go mod download
+      - name: Build & Publish release release
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          distribution: goreleaser
+          version: '~> v2'
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/verify.yml

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+---
+name: verify
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - edited
+      - synchronize
+
+jobs:
+  markdownlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: articulate/actions-markdownlint@v1
+
+  unittests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22.x'
+      - name: Install dependencies
+        run: go mod download
+      - name: Test with the Go CLI
+        run: go test ./...
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.22.x'
+      - name: Install dependencies
+        run: go mod download
+      - name: Build project against .goreleaser.yaml
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          distribution: goreleaser
+          version: '~> v2'
+          args: build --snapshot
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.goreleaser.yaml

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+---
+version: 2
+builds:
+  - id: checksum
+    main: ./
+    binary: checksum
+    ldflags:
+      - -s -w -X main.appVersion={{.Version}} -X main.buildTimestamp={{.Date}}
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - darwin
+      - dragonfly
+      - freebsd
+      - linux
+      - netbsd
+      - openbsd
+      - solaris
+      - windows
+    goarch:
+      # x86
+      - amd64
+      - "386"
+
+      # ARM
+      - arm64
+      - arm
+
+      # MIPS
+      - mips64
+      - mips64le
+      - mips
+      - mipsle
+    goamd64: ["v1", "v2", "v3"]
+    goarm: ["6", "7"]
+    gomips: ["hardfloat", "softfloat"]
+    mod_timestamp: "{{ .CommitTimestamp }}"
+archives:
+  - format: binary
+checksum:
+  name_template: "checksums.txt"
+  algorithm: sha256
+  split: false
+  disable: false