[jdk22u] RFR: 8326960: GHA: RISC-V sysroot cannot be debootstrapped due to ongoing Debian t64 transition

Fri Mar 22 14:29:55 UTC 2024

Makes GHA cross-compilation jobs clean again.

Additional testing: 
- [ ] GHA

-------------

Commit messages:
 - Backport f207aa94f9296932276c2952252b263efc793b3f

Changes: https://git.openjdk.org/jdk22u/pull/110/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk22u&pr=110&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326960
  Stats: 15 lines in 1 file changed: 14 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk22u/pull/110.diff
  Fetch: git fetch https://git.openjdk.org/jdk22u.git pull/110/head:pull/110

PR: https://git.openjdk.org/jdk22u/pull/110