Update tycho.version to v4.0.3

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.eclipse.tycho:tycho-p2-plugin (source)	4.0.2 -> 4.0.3
org.eclipse.tycho:tycho-buildtimestamp-jgit (source)	4.0.2 -> 4.0.3
org.eclipse.tycho:tycho-packaging-plugin (source)	4.0.2 -> 4.0.3
org.eclipse.tycho:tycho-source-plugin (source)	4.0.2 -> 4.0.3
org.eclipse.tycho:target-platform-configuration (source)	4.0.2 -> 4.0.3
org.eclipse.tycho:tycho-maven-plugin (source)	4.0.2 -> 4.0.3

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by Renovate Bot.