Bump insights-core from 3.2.20 to 3.2.21

Bumps [insights-core](https://github.com/redhatinsights/insights-core) from 3.2.20 to 3.2.21.
- [Release notes](https://github.com/redhatinsights/insights-core/releases)
- [Changelog](https://github.com/RedHatInsights/insights-core/blob/insights-core-3.2.21/CHANGELOG.md)
- [Commits](RedHatInsights/insights-core@insights-core-3.2.20...insights-core-3.2.21)

---
updated-dependencies:
- dependency-name: insights-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,6 +1,6 @@
 app-common-python==0.2.6
 boto3==1.28.63
-insights-core==3.2.20
+insights-core==3.2.21
 git+https://github.com/RedHatInsights/insights-core-messaging@1.2.2
 jsonschema==3.2.0
 python-json-logger==2.0.7