[jfx17u] RFR: 8291051: Update boot JDK to 17.0.4

[Kevin Rushforth]

This bumps the boot JDK used to build jfx17u to JDK 17.0.4. The minimum JDK that can run JavaFX 17.0.x is unchanged and remains at JDK 11.

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Commit messages:
 - 8291051: Update boot JDK to 17.0.4

Changes: https://git.openjdk.org/jfx17u/pull/78/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx17u&pr=78&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8291051
  Stats: 11 lines in 2 files changed: 0 ins; 0 del; 11 mod
  Patch: https://git.openjdk.org/jfx17u/pull/78.diff
  Fetch: git fetch https://git.openjdk.org/jfx17u pull/78/head:pull/78

PR: https://git.openjdk.org/jfx17u/pull/78