chore: run FuzzExtractArchive on a larger runner

Signed-off-by: egibs <20933572+egibs@users.noreply.github.com>

Author: egibs

.github/workflows/fuzz.yaml

@@ -92,7 +92,7 @@ jobs:
   fuzz:
     if: ${{ github.repository == 'chainguard-dev/malcontent' && needs.discover.outputs.targets != '[]' }}
     needs: discover
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.target.test == 'FuzzExtractArchive' && 'ubuntu-latest-8-core' || 'ubuntu-latest' }}
     permissions:
       contents: read
     strategy: