Fix conditional checks to reference updated runner names

Co-authored-by: clemensv <542030+clemensv@users.noreply.github.com>

Author: Copilot

.github/workflows/perl.yml

@@ -218,7 +218,7 @@ jobs:
   # Requires PAUSE_USERNAME and PAUSE_PASSWORD secrets to be set
   publish-cpan:
     name: Publish to CPAN
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-4-cores
     needs: prepare-cpan
     if: startsWith(github.ref, 'refs/tags/v')
     environment: cpan  # Use a protected environment for secrets

.github/workflows/rust.yml

@@ -65,12 +65,12 @@ jobs:
         run: cargo test --verbose
 
       - name: Run clippy
-        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest'
+        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest-4-cores'
         working-directory: rust
         run: cargo clippy -- -D warnings
 
       - name: Check formatting
-        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest'
+        if: matrix.rust == 'stable' && matrix.os == 'ubuntu-latest-4-cores'
         working-directory: rust
         continue-on-error: true
         run: cargo fmt -- --check