[jdk17u] RFR: 8314677: Bump update version for OpenJDK: jdk-17.0.8.1 [v2]

[Ben Taylor]

> Proposed branch for [JDK-8314677](https://bugs.openjdk.org/browse/JDK-8314677)
> 
> 
> Note that the merge preview on this branch will be incorrect as there is no upstream jdk17.0.8 branch, only a 17.0.8-ga tag. As such the PR is based on `master`.
> Changes against the GA tag can be viewed at [diff](https://github.com/openjdk/jdk17u/compare/jdk-17.0.8-ga...benty-amzn:jdk17u:jdk17.0.8.1?expand=1)
> 
> See also previous discussion on #374

Ben Taylor has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  Update release date to 2023-08-24

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Changes:
  - all: https://git.openjdk.org/jdk17u/pull/375/files
  - new: https://git.openjdk.org/jdk17u/pull/375/files/f44db0c3..7cc2ce0c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u&pr=375&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u&pr=375&range=00-01

  Stats: 1000 lines in 5 files changed: 1 ins; 986 del; 13 mod
  Patch: https://git.openjdk.org/jdk17u/pull/375.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u.git pull/375/head:pull/375

PR: https://git.openjdk.org/jdk17u/pull/375