Revert "Test with coverage only for Linux to prevent out of memory"

This reverts commit f844cce.

.github/workflows/testing.yml

@@ -49,11 +49,11 @@ jobs:
 
       - name: Install stylelint v15
         run: npm i -D stylelint@^15
-        if: ${{ matrix.stylelint == '15' }}
+        if: matrix.stylelint == 15
 
       - name: Install stylelint v14
         run: npm i -D stylelint@^14 stylelint-scss@^4.3.0
-        if: ${{ matrix.stylelint == '14' }}
+        if: matrix.stylelint == 14
 
       - name: Cache VS Code binaries
         uses: actions/cache@v4
@@ -68,25 +68,15 @@ jobs:
         run: npm run download-vscode
 
       - name: Run unit tests
-        run: npm run test:unit
-        if: ${{ runner.os != 'Linux' }}
-
-      - name: Run unit tests (coverage)
         run: npm run test:unit -- --coverage
-        if: ${{ runner.os == 'Linux' }}
 
       - name: Run integration tests
-        run: npm run test:integration
-        if: ${{ runner.os != 'Linux' }}
-
-      - name: Run integration tests (coverage)
         run: npm run test:integration -- --coverage
-        if: ${{ runner.os == 'Linux' }}
 
       - name: Run end-to-end tests (Linux)
+        if: runner.os == 'Linux'
         run: xvfb-run -a npm run test:e2e -- --silent
-        if: ${{ runner.os == 'Linux' }}
 
       - name: Run end-to-end tests (non-Linux)
+        if: runner.os != 'Linux'
         run: npm run test:e2e -- --silent
-        if: ${{ runner.os != 'Linux' }}