chore: simplify and refactor linting (cosmos#12318)

## Description

- Use tools methodology to use canonically versioned tools/binaries (e.g. golangci-lint)
  - This makes it so that all environments and developers use the same versions of tools (no need to rely on hacky docker containers)
- Update makefile
- Address linting errors

---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

app.go

@@ -16,6 +16,7 @@ import (
 	dbm "github.com/tendermint/tm-db"
 
 	"cosmossdk.io/core/appconfig"
+
 	"github.com/cosmos/cosmos-sdk/depinject"
 
 	"github.com/cosmos/cosmos-sdk/baseapp"

simd/cmd/testnet.go

@@ -467,10 +467,9 @@ func calculateIP(ip string, i int) (string, error) {
 }
 
 func writeFile(name string, dir string, contents []byte) error {
-	writePath := filepath.Join(dir)
-	file := filepath.Join(writePath, name)
+	file := filepath.Join(dir, name)
 
-	err := tmos.EnsureDir(writePath, 0o755)
+	err := tmos.EnsureDir(dir, 0o755)
 	if err != nil {
 		return err
 	}