workflows: release promotion job updates

[patrick-stephens]

Resolves #4566 & #3753 (partial), tested on https://github.com/patrick-stephens/fluent-bit-release-test/runs/4788880583?check_suite_focus=true using disposable server and bucket.

Confirmed to function with environment secrets only as well:

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Enter [N/A] in the box, if an item is not applicable to your change.

Testing
Before we can approve your change; please submit the following in a comment:

• [NA] Example configuration file for the change
• [NA] Debug log output from testing the change

• [NA] Attached Valgrind output that shows no leaks or memory corruption was found

If this is a change to packaging of containers or native binaries then please confirm it works for all targets.

• [NA] Attached local packaging test output showing all targets (including any new ones) build.

Verified the packages pass tests as well:

$ AWS_URL=https://pat-fluent-bit-release.s3.amazonaws.com ./packaging/testing/smoke/packages/run-package-tests.sh 
$ PACKAGE_TEST=debian11 AWS_URL=https://pat-fluent-bit-release.s3.amazonaws.com ./packaging/testing/smoke/packages/run-package-tests.sh 
$ PACKAGE_TEST=centos8 AWS_URL=https://pat-fluent-bit-release.s3.amazonaws.com ./packaging/testing/smoke/packages/run-package-tests.sh 

Added a wrapper script that runs all these which also passes too.
AWS_URL=https://pat-fluent-bit-release.s3.amazonaws.com ./packaging/testing/smoke/packages/local-test-all.sh

Documentation

• [NA] Documentation required for this feature

Backporting

• [NA] Backport to latest stable release.

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

[niedbalski]

LGTM