workflows: Use hyphens in filenames instead of underscores

.github/workflows/build-test.yml

@@ -41,4 +41,4 @@ jobs:
       - name: Repository checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - name: Build check
-        run: .github/workflows/build_test.sh
+        run: .github/workflows/build-test.sh

.github/workflows/codeql.yml

@@ -50,7 +50,7 @@ jobs:
         languages: ${{ matrix.language }}
         config-file: ./.github/codeql-config.yml
 
-    - run: sudo -E .github/workflows/unit_tests.sh SETUP
+    - run: sudo -E .github/workflows/unit-tests.sh SETUP
 
     - name: Autobuild
       uses: github/codeql-action/autobuild@181d5eefc20863364f96762470ba6f862bdef56b

.github/workflows/coverity.yml

@@ -25,6 +25,6 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       # Reuse the setup phase of the unit test script to avoid code duplication
       - name: Install build dependencies
-        run: sudo -E .github/workflows/unit_tests.sh SETUP
+        run: sudo -E .github/workflows/unit-tests.sh SETUP
       - name: Build & upload the results
         run: tools/coverity.sh

.github/workflows/unit-tests.yml

@@ -44,6 +44,6 @@ jobs:
           sudo sed -i '/^XDG_/d' /etc/environment
           # Pass only specific env variables through sudo, to avoid having
           # the already existing XDG_* stuff on the "other side"
-          sudo --preserve-env=GITHUB_ACTIONS,CI .github/workflows/unit_tests.sh SETUP
+          sudo --preserve-env=GITHUB_ACTIONS,CI .github/workflows/unit-tests.sh SETUP
       - name: Build & test
-        run: sudo --preserve-env=GITHUB_ACTIONS,CI .github/workflows/unit_tests.sh RUN_${{ matrix.run_phase }}
+        run: sudo --preserve-env=GITHUB_ACTIONS,CI .github/workflows/unit-tests.sh RUN_${{ matrix.run_phase }}