CI: fix GLIBC compatibility for scenario tests by using ubuntu-22.04

Change test binary artifacts to be built on ubuntu-22.04 instead of
ubuntu-24.04 to ensure GLIBC compatibility with the Debian Bullseye
container used in scenario tests. This fixes "GLIBC_2.38/2.39 not found"
errors when running scenario tests.

Author: dannywillems

.github/workflows/ci.yaml

@@ -153,7 +153,7 @@ jobs:
           make build-release
 
       - name: Upload binaries
-        if: matrix.os == 'ubuntu-24.04'
+        if: matrix.os == 'ubuntu-22.04'
         uses: actions/upload-artifact@v4
         with:
           name: bin
@@ -244,7 +244,7 @@ jobs:
           while read NAME FILE; do cp -a $FILE target/release/tests/$NAME; done < tests.tsv
 
       - name: Upload tests
-        if: matrix.os == 'ubuntu-24.04'
+        if: matrix.os == 'ubuntu-22.04'
         uses: actions/upload-artifact@v4
         with:
           name: tests
@@ -288,7 +288,7 @@ jobs:
           make build-tests-webrtc
 
       - name: Upload tests
-        if: matrix.os == 'ubuntu-24.04'
+        if: matrix.os == 'ubuntu-22.04'
         uses: actions/upload-artifact@v4
         with:
           name: tests-webrtc