[lworld] RFR: 8255130: [lworld] Adjust github actions

[David Simms]

Cleaned up minimal target, disabled zero port, disabled PCH for Windows:

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Commit messages:
 - Undo initial bump
 - PCH yield C2908 error
 - Fix minimal as build target
 - x86_64 only
 - Bump for action testing

Changes: https://git.openjdk.java.net/valhalla/pull/242/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=242&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8255130
  Stats: 14 lines in 4 files changed: 8 ins; 6 del; 0 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/242.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/242/head:pull/242

PR: https://git.openjdk.java.net/valhalla/pull/242