[jdk8u-dev] RFR: 8282552: Bump update version of OpenJDK: 8u342

[Severin Gehwolf]

Bump update version of jdk8u-dev to 8u342

### Progress
- [x] Change must not contain extraneous whitespace
- [x] Commit message must refer to an issue
- [ ] Change must be properly reviewed

### Error
 ⚠️ The pull request body must not be empty.



### Reviewing
<details><summary>Using <code>git</code></summary>

Checkout this PR locally: \
`$ git fetch https://git.openjdk.java.net/jdk8u-dev pull/1/head:pull/1` \
`$ git checkout pull/1`

Update a local copy of the PR: \
`$ git checkout pull/1` \
`$ git pull https://git.openjdk.java.net/jdk8u-dev pull/1/head`

</details>
<details><summary>Using Skara CLI tools</summary>

Checkout this PR locally: \
`$ git pr checkout 1`

View PR using the GUI difftool: \
`$ git pr show -t 1`

</details>
<details><summary>Using diff file</summary>

Download this PR as a diff file: \
<a href="https://git.openjdk.java.net/jdk8u-dev/pull/1.diff">https://git.openjdk.java.net/jdk8u-dev/pull/1.diff</a>

</details>

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Commit messages:
 - 8282552: Bump update version of OpenJDK: 8u342

Changes: https://git.openjdk.java.net/jdk8u-dev/pull/1/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk8u-dev&pr=1&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282552
  Stats: 32 lines in 2 files changed: 29 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk8u-dev/pull/1.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk8u-dev pull/1/head:pull/1

PR: https://git.openjdk.java.net/jdk8u-dev/pull/1