refactor: only fail the build for low coverage on non-windows MRI

Author: jcouball

.github/workflows/continuous_integration.yml

@@ -25,16 +25,28 @@ jobs:
     runs-on: ${{ matrix.operating-system }}
     continue-on-error: true
 
+    env:
+      FAIL_ON_LOW_COVERAGE: ${{ matrix.fail_on_low_coverage }}
+
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3", "jruby-9.4", "truffleruby-24"]
+        ruby: ["3.1", "3.4"]
         operating-system: [ubuntu-latest]
+        fail_on_low_coverage: ["true"]
         include:
+          - ruby: "jruby-9.4"
+            operating-system: ubuntu-latest
+            fail_on_low_coverage: "false"
+          - ruby: "truffleruby-24"
+            operating-system: ubuntu-latest
+            fail_on_low_coverage: "false"
           - ruby: "3.1"
             operating-system: windows-latest
+            fail_on_low_coverage: "false"
           - ruby: "jruby-9.4"
             operating-system: windows-latest
+            fail_on_low_coverage: "false"
 
     steps:
       - name: Checkout

.github/workflows/experimental_ruby_builds.yml

@@ -22,20 +22,28 @@ jobs:
     runs-on: ${{ matrix.operating-system }}
     continue-on-error: true
 
+    env:
+      FAIL_ON_LOW_COVERAGE: ${{ matrix.fail_on_low_coverage }}
+
     strategy:
       fail-fast: false
       matrix:
         include:
           - ruby: head
             operating-system: ubuntu-latest
+            fail_on_low_coverage: "true"
           - ruby: head
             operating-system: windows-latest
+            fail_on_low_coverage: "false"
           - ruby: truffleruby-head
             operating-system: ubuntu-latest
+            fail_on_low_coverage: "false"
           - ruby: jruby-head
             operating-system: ubuntu-latest
+            fail_on_low_coverage: "false"
           - ruby: jruby-head
             operating-system: windows-latest
+            fail_on_low_coverage: "false"
 
     steps:
       - name: Checkout