Add reproducible timestamps in archives

[Zlika]

Use the standard "project.build.outputTimestamp" maven property to enable reproducible timestamps in archives (cf. https://maven.apache.org/guides/mini/guide-reproducible-builds.html).

[laeubi]

@Zlika the failing test seem to be due to eclipse infra outages at the moment, but can you probably add
an integration-test to demonstrate the feature and make sure it actually works?

[Zlika]

Hello @laeubi. I added integration tests.

[laeubi]

Looks good to me, thanks for the enhancement.

To make people aware of this new feature you might want to add it to the release notes as well.

[laeubi]

@HannesWell any idea why the license check do not run here?

[HannesWell]

@HannesWell any idea why the license check do not run here?

My first guess is that it's not running because of not yet approved workflows. But then I wonder why it's even displayed as pending/waiting?

[Zlika]

Looks good to me, thanks for the enhancement.

To make people aware of this new feature you might want to add it to the release notes as well.

It's just a first step towards reproducible builds with Tycho. More PR will come after this one has been merged. I will update the release note when the full feature is available.

[eclipse-tycho-bot]

💚 All backports created successfully

Status	Branch	Result
✅	tycho-4.0.x

Note: Successful backport PRs will be merged automatically after passing CI.

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details

[eclipse-tycho-bot]

💚 All backports created successfully

Status	Branch	Result
✅	tycho-4.0.x

Note: Successful backport PRs will be merged automatically after passing CI.

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details