Ruby: Use multiple threads in QL test CI job

Author: hvitved

.github/workflows/ruby-qltest.yml

@@ -32,14 +32,14 @@ jobs:
       - uses: ./ruby/actions/create-extractor-pack
       - name: Run QL tests
         run: |
-          codeql test run --search-path "${{ github.workspace }}/ruby/extractor-pack" --check-databases --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --consistency-queries ql/consistency-queries ql/test
+          codeql test run --threads=0 --ram 5000 --search-path "${{ github.workspace }}/ruby/extractor-pack" --check-databases --check-unused-labels --check-repeated-labels --check-redefined-labels --check-use-before-definition --consistency-queries ql/consistency-queries ql/test
         env:
           GITHUB_TOKEN: ${{ github.token }}
       - name: Check QL formatting
         run: find ql "(" -name "*.ql" -or -name "*.qll" ")" -print0 | xargs -0 codeql query format --check-only
       - name: Check QL compilation
         run: |
-          codeql query compile --check-only --threads=4 --warnings=error "ql/src" "ql/examples"
+          codeql query compile --check-only --threads=0 --ram 5000 --warnings=error "ql/src" "ql/examples"
         env:
           GITHUB_TOKEN: ${{ github.token }}
       - name: Check DB upgrade scripts