fix: Dockerfile to reduce vulnerabilities
The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN11-GNUPG2-2939851
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2933518
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2933518
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2941242
- https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2941242
