add ruby 3.4 to coverage, use 3.2 for windows unit tests

Author: akerekes

.github/workflows/conformance.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ['3.1', '3.2', '3.3']
+        ruby: ['3.1', '3.2', '3.3', '3.4']
     steps:
     - name: Harden Runner
       uses: step-security/harden-runner@4d991eb9b905ef189e4c376166672c3f2f230481 # v2.11.0
@@ -71,4 +71,4 @@ jobs:
         useBuildpacks: false
         validateConcurrency: true
         cmd: "'bundle exec functions-framework-ruby --source test/conformance/app.rb --target concurrent_http_func --signature-type http'"
-    
+

.github/workflows/unit.yml

@@ -15,8 +15,8 @@ jobs:
     if: ${{ github.repository == 'GoogleCloudPlatform/functions-framework-ruby' }}
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest]
-        ruby: ['3.1', '3.2', '3.3']
+        os: [ubuntu-latest]
+        ruby: ['3.1', '3.2', '3.3', '3.4']
         flags: ["--only --test-unit"]
         include:
           - os: ubuntu-latest
@@ -29,7 +29,7 @@ jobs:
             ruby: "3.1"
             flags: "--only --test-unit"
           - os: windows-latest
-            ruby: "3.1"
+            ruby: "3.2" # 3.1 fails similar to https://github.com/rubygems/rubygems/issues/4338
             flags: "--only --test-unit"
           - os: ubuntu-latest
             ruby: "3.1"