fix: update java mysql devfile

[vitaliy-guliy]

Signed-off-by: Vitaliy Gulyy vgulyy@redhat.com

What does this PR do?

Fixes running of java-spring-petclinic project https://github.com/che-samples/java-spring-petclinic

Screenshot/screencast of this PR

What issues does this PR fix or reference?

eclipse-che/che#19989

How to test this PR?

• Create a workspace from the devfile

PR Checklist

As the author of this Pull Request I made sure that:

• The Eclipse Contributor Agreement is valid
• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix
• The repository devfile is up to date and works
• Sections What issues does this PR fix or reference and How to test this PR completed
• Relevant user documentation updated
• Relevant contributing documentation updated
• CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[svor]

LGTM

[l0rd]

Why have we switched to main branch? I am asking because in the past we moved to a specific commit instead of main/master branch to avoid that a devfile could be broken by newer commits.

[vitaliy-guliy]

I think the devfile should be working, as we don't update our samples very often.
If it's preferred to use commit instead of a branch, we need to add that to all the devfiles. In most of them main/master or even default branch is used.
What shall we do?

[l0rd]

I would suggest to use commits. In general it's safer to specify a commit or a tag rather than a branch. But that's not a top priority task so do it whenever you have the chance.