[jfx21u] RFR: 8318387: Update GStreamer to 1.22.6

[Alexander Matveev]

Clean backport of JDK-8318387.

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Commit messages:
 - Backport 606878af275dbad551a10653c92a2deef61c10cd

Changes: https://git.openjdk.org/jfx21u/pull/33/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx21u&pr=33&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8318387
  Stats: 45668 lines in 438 files changed: 19431 ins; 18936 del; 7301 mod
  Patch: https://git.openjdk.org/jfx21u/pull/33.diff
  Fetch: git fetch https://git.openjdk.org/jfx21u.git pull/33/head:pull/33

PR: https://git.openjdk.org/jfx21u/pull/33