implement PubObjectRetention and WORM (#6969)

* implement PubObjectRetention and WORM

* Update s3_worm_integration_test.go

* avoid previous buckets

* Update s3-versioning-tests.yml

* address comments

* address comments

* rename to ExtObjectLockModeKey

* only checkObjectLockPermissions if versioningEnabled

* address comments

* comments

* Revert "comments"

This reverts commit 6736434176f86c6e222b867777324b17c2de716f.

* Update s3api_object_handlers_skip.go

* Update s3api_object_retention_test.go

* add version id to ObjectIdentifier

* address comments

* add comments

* Add proper error logging for timestamp parsing failures

* address comments

* add version id to the error

* Update weed/s3api/s3api_object_retention_test.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update weed/s3api/s3api_object_retention.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* constants

* fix comments

* address comments

* address comment

* refactor out handleObjectLockAvailabilityCheck

* errors.Is ErrBucketNotFound

* better error checking

* address comments

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

.gitignore

@@ -102,3 +102,4 @@ bin/weed
 weed_binary
 /test/s3/copying/filerldb2
 /filerldb2
+/test/s3/retention/test-volume-data