time: TestLoadFixed failures [1.22 backport]

[gopherbot]

@ianlancetaylor requested issue #69840 to be considered for backport to the next 1.22 minor release.

@gopherbot Please open backport issues.

This test failure is due to a change in the tzdata files on OpenBSD. We should either backport the (trivial) fix or have some other way to ignore the test failure on the builders.

[cherrymui]

Test only fix, to make it work with newer OpenBSD. Approved.

[gopherbot]

Change https://go.dev/cl/627416 mentions this issue: [release-branch.go1.22] time: accept "+01" in TestLoadFixed on OpenBSD

[gopherbot]

Closed by merging CL 627416 (commit 3355db9) to release-branch.go1.22.