tools: create llhttp update action

PR-URL: #46766
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>

.github/workflows/tools.yml

@@ -164,6 +164,19 @@ jobs:
                 echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
                 ./tools/update-nghttp2.sh "$NEW_VERSION"
               fi
+          - id: llhttp
+            subsystem: deps
+            label: dependencies
+            run: |
+              NEW_VERSION=$(gh api repos/nodejs/llhttp/releases/latest -q '.tag_name|ltrimstr("release/v")')
+              CURRENT_MAJOR_VERSION=$(grep "#define LLHTTP_VERSION_MAJOR" ./deps/llhttp/include/llhttp.h | sed -n "s/^.*MAJOR \(.*\)/\1/p")
+              CURRENT_MINOR_VERSION=$(grep "#define LLHTTP_VERSION_MINOR" ./deps/llhttp/include/llhttp.h | sed -n "s/^.*MINOR \(.*\)/\1/p")
+              CURRENT_PATCH_VERSION=$(grep "#define LLHTTP_VERSION_PATCH" ./deps/llhttp/include/llhttp.h | sed -n "s/^.*PATCH \(.*\)/\1/p")
+              CURRENT_VERSION="$CURRENT_MAJOR_VERSION.$CURRENT_MINOR_VERSION.$CURRENT_PATCH_VERSION"
+              if [ "$NEW_VERSION" != "$CURRENT_VERSION" ]; then
+                echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
+                ./tools/update-llhttp.sh "$NEW_VERSION"
+              fi
     steps:
       - uses: actions/checkout@v3
         with: