ci: Strip directory prefix on source extraction

.github/workflows/build-linux.yml

@@ -49,7 +49,7 @@ jobs:
     - name: Extract source package
       run: |
         mkdir src
-        tar -C src -xf xemu-*.tar.gz
+        tar -xf xemu-*.tar.gz -C src --strip-components=2
     - name: Create debian changelog
       run: |
         pushd src

.github/workflows/build-macos.yml

@@ -37,7 +37,7 @@ jobs:
       with:
         name: src
     - name: Extract source package
-      run: tar xf xemu-*.tar.gz
+      run: tar -xf xemu-*.tar.gz --strip-components=2
     - uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
       with:
         python-version: '3.12'

.github/workflows/build-windows.yml

@@ -34,7 +34,7 @@ jobs:
       with:
         name: src
     - name: Extract source package
-      run: tar xf xemu-*.tar.gz
+      run: tar -xf xemu-*.tar.gz --strip-components=2
     - name: Initialize compiler cache
       id: cache
       uses: actions/cache@9255dc7a253b0ccc959486e2bca901246202afeb # v4

.github/workflows/update-ppa.yml

@@ -25,7 +25,7 @@ jobs:
     - name: Extract source package
       run: |
         mkdir src
-        tar -C src -xf src.tar.gz
+        tar -C src -xf xemu-*.tar.gz --strip-components=2
 
         # Ensure subprojects are uploaded
         find src/subprojects -name "*.gitignore" -exec rm {} \;