Clean up workflows and add badges

.github/workflows/python-tests.yml

@@ -36,7 +36,7 @@ jobs:
           hatch run cov:test
       - name: Coverage
         run: |
-          pip install codecov
+          pip install codecov coverage[toml]
           codecov
 
   pre_commit:
@@ -54,13 +54,9 @@ jobs:
       - uses: actions/checkout@v3
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
         with:
-          python_version: "3.8"
-      - uses: jupyterlab/maintainer-tools/.github/actions/install-minimums@v1
-        with:
-          only_create_file: 1
+          dependency_type: minimum
       - name: Run the unit tests
         run: |
-          export PIP_CONSTRAINT="./contraints_file.txt"
           hatch run test:nowarn || hatch run test:nowarn --lf
   test_prereleases:
     name: Test Prereleases
@@ -70,10 +66,9 @@ jobs:
       - uses: actions/checkout@v3
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
         with:
-          python_version: "3.11"
+          dependency_type: pre
       - name: Run the tests
         run: |
-          export PIP_PRE=1
           hatch run test:nowarn || hatch run test:nowarn --lf
 
   check_release:

README.md

@@ -1,5 +1,8 @@
 # Jupyter Server Synchronizer
 
+[![Build Status](https://github.com/jupyter-server/synchronizer/actions/workflows/python-tests.yml/badge.svg?query=branch%3Amain++)](https://github.com/jupyter-server/synchronizer/actions/workflows/python-tests.yml/badge.svg?query=branch%3Amain++)
+[![codecov](https://codecov.io/gh/jupyter-server/synchronizer/branch/main/graph/badge.svg?token=9ZWRV75IV5)](https://codecov.io/gh/jupyter-server/synchronizer)
+
 A Jupyter Server Session Manager that rehydrates and persists kernels and sessions beyond the lifetime of a server.
 
 This is particularly useful for Jupyter Servers running remote kernels and contents.