Pass continue-on-error to the reusable workflow as an input. (jaraco/skeleton#209)

A job that calls a reusable workflow may not set 'continue-on-error';
GitHub rejects the whole file at startup ("Unexpected value
'continue-on-error'") before creating any jobs. The reusable-workflow
refactor in jaraco/skeleton#199 moved the 'test' job to a reusable-workflow call while
keeping the job-level 'continue-on-error', taking CI dark on skeleton
and every downstream project that has since merged.

Move the setting into test-suite.yml as a boolean 'continue-on-error'
input and pass it through from the caller, preserving the
allow-3.15-to-fail behavior while keeping the version-specific logic in
main.yml.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: jaraco

.github/workflows/main.yml

@@ -43,8 +43,9 @@ jobs:
     with:
       python: ${{ matrix.python }}
       platform: ${{ matrix.platform }}
-    # https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#jobsjob_idcontinue-on-error
-    continue-on-error: ${{ matrix.python == '3.15' }}
+      # continue-on-error can't be set on a reusable-workflow caller job
+      # (jaraco/skeleton#199), so pass it through as an input instead.
+      continue-on-error: ${{ matrix.python == '3.15' }}
 
   collateral:
     strategy:

.github/workflows/test-suite.yml

@@ -16,6 +16,12 @@ on:
           Tox environment to run; if empty, runs default tox
         type: string
         default: ""
+      continue-on-error:
+        description: >-
+          Whether a failure of this run should be tolerated
+          (e.g. for pre-release Pythons)
+        type: boolean
+        default: false
 
 env:
   # Environment variable to support color support (jaraco/skeleton#66)
@@ -32,6 +38,7 @@ env:
 jobs:
   run:
     runs-on: ${{ inputs.platform }}
+    continue-on-error: ${{ inputs.continue-on-error }}
     permissions:
       contents: read
     steps: