Bump streetsidesoftware/cspell-action from 8.1.2 to 8.2.0 (open-telemetry#4820)

Bumps [streetsidesoftware/cspell-action](https://github.com/streetsidesoftware/cspell-action) from 8.1.2 to 8.2.0.
- [Release notes](https://github.com/streetsidesoftware/cspell-action/releases)
- [Changelog](https://github.com/streetsidesoftware/cspell-action/blob/main/CHANGELOG.md)
- [Commits](streetsidesoftware/cspell-action@24fa8d3...d5d910b)

---
updated-dependencies:
- dependency-name: streetsidesoftware/cspell-action
  dependency-version: 8.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/validate-documentation.yml

@@ -43,7 +43,7 @@ jobs:
         args: "--cache --max-cache-age 1d --threads 1 --max-concurrency 1 --verbose --retry-wait-time 5 --max-retries 3 --timeout 60 --no-progress './**/*.md' './**/*.html'"
 
     - name: Run markdownlint
-      uses: streetsidesoftware/cspell-action@24fa8d3096a314ce263f39578744e9d9f8d80acf # tag: v8.1.2
+      uses: streetsidesoftware/cspell-action@d5d910b521ad408f1e7383c24609079f5a88bdca # tag: v8.2.0
       with:
         files: '**/*.md'