Convert p2 AutomatedTests to junit 5 suite

[akurtakov]

No description provided.

[github-actions]

Test Results

   18 files  +  1     18 suites  +1   28m 14s ⏱️ +30s
1 905 tests +  3  1 902 ✅ +  4  3 💤 ±0  0 ❌  - 1 
5 164 runs  +104  5 155 ✅ +102  9 💤 +3  0 ❌  - 1 

Results for commit 44aaab2. ± Comparison against base commit 308fa50.

This pull request removes 95 and adds 98 tests. Note that renamed tests count towards both.

org.eclipse.equinox.p2.tests.AutomatedTests ‑ cleanup
org.eclipse.equinox.p2.tests.AutomatedTests ‑ initialize
org.eclipse.equinox.p2.tests.AutomatedTests ‑ setupRun
org.eclipse.equinox.p2.tests.AutomatedTests ‑ testAddBundle
org.eclipse.equinox.p2.tests.AutomatedTests ‑ testBaseChange
org.eclipse.equinox.p2.tests.AutomatedTests ‑ testBaseChangeWithoutUserChange
org.eclipse.equinox.p2.tests.AutomatedTests ‑ testBaseEncompassSomePartsOfWhatUserHas
org.eclipse.equinox.p2.tests.AutomatedTests ‑ testBaseEncompassSomePartsOfWhatUserHas2
org.eclipse.equinox.p2.tests.AutomatedTests ‑ testBaseEncompassWhatUserHas
org.eclipse.equinox.p2.tests.AutomatedTests ‑ testBaseWithExtensionsChange
…

AutomatedTests ‑ Unknown test
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testGetArrayFromString
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testLoadBadDescription
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testLoadEmpty
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testLoadGoodDescription
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testLoadMissing
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testLoadMissingRelative
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testLoadRelativeDescription
org.eclipse.equinox.p2.tests.installer.AllTests ‑ testLoadSDKDescription
org.eclipse.equinox.p2.tests.reconciler.dropins.AllTests ‑ cleanup
…