add new processors test matrix to CI

.github/workflows/ci-processors.yml

@@ -0,0 +1,62 @@
+name: CI Processors
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  processors:
+    strategy:
+      fail-fast: false
+      matrix:
+        gem:
+          - baggage
+        os:
+          - ubuntu-latest
+
+    name: ${{ matrix.gem }} / ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: "Test Ruby 3.3"
+        uses: ./.github/actions/test_gem
+        with:
+          gem: "opentelemetry-processor-${{ matrix.gem }}"
+          ruby: "3.3"
+      - name: "Test Ruby 3.2"
+        uses: ./.github/actions/test_gem
+        with:
+          gem: "opentelemetry-processor-${{ matrix.gem }}"
+          ruby: "3.2"
+      - name: "Test Ruby 3.1"
+        uses: ./.github/actions/test_gem
+        with:
+          gem:  "opentelemetry-processor-${{ matrix.gem }}"
+          ruby: "3.1"
+      - name: "Test Ruby 3.0"
+        if: "${{ matrix.os == 'ubuntu-latest' }}"
+        uses: ./.github/actions/test_gem
+        with:
+          gem:  "opentelemetry-processor-${{ matrix.gem }}"
+          ruby: "3.0"
+          yard: true
+          rubocop: true
+          build: true
+      - name: "JRuby Filter"
+        id: jruby_skip
+        shell: bash
+        run: |
+          echo "skip=false" >> $GITHUB_OUTPUT
+          # This is essentially a bash script getting evaluated, so we need to return true or the whole job fails.
+          true
+      - name: "Test JRuby"
+        if: "${{ matrix.os == 'ubuntu-latest' && steps.jruby_skip.outputs.skip == 'false' }}"
+        uses: ./.github/actions/test_gem
+        with:
+          gem: "opentelemetry-processor-${{ matrix.gem }}"
+          ruby: "jruby-9.4.2.0"