Update CI workflow to specify exact versions for flake8, black, and isort; change Codecov error handling

Author: TMHSDigital

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r requirements.txt
           pip install -e .
-          pip install pytest pytest-cov flake8 black isort
+          pip install pytest pytest-cov flake8==7.0.0 black==24.3.0 isort==5.13.2
       - name: Lint (flake8)
         run: flake8 .
       - name: Format check (black)
@@ -40,7 +40,7 @@ jobs:
         if: ${{ matrix.os == 'ubuntu-latest' && matrix.python-version == '3.11' }}
         uses: codecov/codecov-action@v4
         with:
-          fail_ci_if_error: true
+          fail_ci_if_error: false
 name: CI
 
 on: