[gha] Update tests.yml

This commit updates the version number of the actions we use, it will now
use the commit SHA for security purposes.

It also replaces coveralls dependency, as it is no longer suppoerted, the
official github action will be used.

Signed-off-by: Venu Vardhan Reddy Tekula <[email protected]>

.github/workflows/tests.yml

@@ -3,12 +3,12 @@ name: tests
 on:
   push:
     branches:
-      - '**'
+      - "**"
     tags:
-      - '!**'
+      - "!**"
   pull_request:
     branches:
-      - '**'
+      - "**"
 
 jobs:
   tests:
@@ -19,9 +19,9 @@ jobs:
 
     name: Python ${{ matrix.python-version }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install and set up Poetry
@@ -31,7 +31,6 @@ jobs:
       - name: Install dependencies
         run: |
           poetry install -vvv
-          poetry add -D coveralls
       - name: Lint with flake8
         run: |
           poetry run flake8
@@ -41,4 +40,9 @@ jobs:
         run: |
           poetry run coverage run tests/run_tests.py
           poetry run coverage report -m
-          poetry run coveralls --service=github
+      - name: Coveralls
+        uses: coverallsapp/github-action@643bc377ffa44ace6394b2b5d0d3950076de9f63 # v2.3.0
+        with:
+          coverage-reporter-version: "v0.6.9"
+          flag-name: run ${{ join(matrix.*, ' - ') }}
+          parallel: true