RFR: 7903917: Changes needed for jdk23-based makefile build [v2]

[Nizar Benalla]

> Changes necessary to bump the supported version to JDK 23.
> Passes tier 1.
> 
> Note: This PR will not be integrated before https://github.com/openjdk/jextract/pull/264 as the removal of `--enable-preview` is needed.

Nizar Benalla has updated the pull request incrementally with one additional commit since the last revision:

  remove --release flag

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

Changes:
  - all: https://git.openjdk.org/jextract/pull/265/files
  - new: https://git.openjdk.org/jextract/pull/265/files/c4079fdd..53801062

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jextract&pr=265&range=01
 - incr: https://webrevs.openjdk.org/?repo=jextract&pr=265&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jextract/pull/265.diff
  Fetch: git fetch https://git.openjdk.org/jextract.git pull/265/head:pull/265

PR: https://git.openjdk.org/jextract/pull/265