fix:...

fix: src/stirling/source_connectors/socket_tracer/testing/containers/mysql/Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE312-APKTOOLS-1533753
- https://snyk.io/vuln/SNYK-ALPINE312-OPENSSL-1569450
- https://snyk.io/vuln/SNYK-ALPINE312-OPENSSL-1569450
- https://snyk.io/vuln/SNYK-ALPINE312-OPENSSL-1569452
- https://snyk.io/vuln/SNYK-ALPINE312-OPENSSL-1569452

src/stirling/source_connectors/socket_tracer/testing/containers/mysql/Dockerfile

@@ -14,7 +14,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-FROM python:3.10.0a7-alpine3.12
+FROM python:rc-alpine3.12
 
 RUN pip install --trusted-host pypi.python.org -q mysql-connector-python