Allow releases to continue on failure to publish to crates.io (#19291)

Alas this job can fail and retries cannot be performed

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

Author: zanieb

.github/workflows/release.yml

@@ -311,7 +311,9 @@ jobs:
     # use "always() && ..." to allow us to wait for all publish jobs while
     # still allowing individual publish jobs to skip themselves (for prereleases).
     # "host" however must run to completion, no skipping allowed!
-    if: ${{ always() && needs.host.result == 'success' && needs.release-gate.result == 'success' && (needs.custom-publish-pypi.result == 'skipped' || needs.custom-publish-pypi.result == 'success') && (needs.custom-publish-crates.result == 'skipped' || needs.custom-publish-crates.result == 'success') }}
+    # `custom-publish-crates` is intentionally not gated on its result: it's
+    # not critical to the release and isn't idempotent on retry.
+    if: ${{ always() && needs.host.result == 'success' && needs.release-gate.result == 'success' && (needs.custom-publish-pypi.result == 'skipped' || needs.custom-publish-pypi.result == 'success') }}
     runs-on: "depot-ubuntu-latest-4"
     environment:
       name: release