fix(release): retry transient Gitee tag pushes

[haofeng0705]

What changed

• retry a missing immutable Gitee tag push up to three times
• bound each push attempt to 75 seconds with a 5-second delay
• increase the tag-stage deadline from 300 to 360 seconds while preserving the overall release budget
• verify the exact remote commit after every failed/timed-out push before retrying
• add a regression test for a transient first-push failure

Why

Recent Gitee repairs for v1.0.55-beta.7 and v1.0.56-beta.3 passed GitHub release authority and artifact verification, but each made only one tag push. The push stalled until the old timeout and the repair failed without a safe retry.

The new flow remains fail-closed: it never moves an existing tag and accepts a timed-out/concurrent push only when the remote tag resolves to the exact expected commit.

Validation

env GOCACHE=/tmp/dws-go-cache GOPATH=/tmp/dws-go-path GOMODCACHE=/tmp/dws-go-path/pkg/mod go test ./test/scripts -run '^(TestSyncGiteeTag|TestGiteeReleaseWorkflowUsesImmutableTagsAndBoundedRetryBudget)' -count=1

Result: PASS.