RFR: 8308114: Bump minimum version of macOS for x64 to 11.0 (matching aarch64)

Mon May 15 18:18:59 UTC 2023

This PR bumps the minimum deployment target for JavaFX to macOS 11.0 (Big Sur) on x64 platforms, matching the current minimum on aarch64.

As a follow-on to this, I will file a (low-priority) cleanup issue to remove any `@available` checks for 10.x, since those will then be no-ops.

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Commit messages:
 - 8308114: Bump minimum version of macOS for x64 to 11.0 (matching aarch64)

Changes: https://git.openjdk.org/jfx/pull/1139/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1139&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8308114
  Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jfx/pull/1139.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1139/head:pull/1139

PR: https://git.openjdk.org/jfx/pull/1139