[Snyk] Security upgrade redhat/ubi8-minimal from latest to 8.9-1108.1705420507

[svetasmirnova]

This PR was automatically created by Snyk using the credentials of a real user.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this PR

• postgresql-containers/build/pgbouncer/Dockerfile

We recommend upgrading to redhat/ubi8-minimal:8.9-1108.1705420507, as this image has only 88 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity	Priority Score / 1000	Issue	Exploit Maturity
	300	Information Exposure SNYK-RHEL8-CURL-6101592	No Known Exploit
	371	Improper Verification of Cryptographic Signature SNYK-RHEL8-GNUTLS-6158848	No Known Exploit
	371	Improper Protection Against Physical Side Channels SNYK-RHEL8-GNUTLS-6159184	No Known Exploit
	371	Cross-site Request Forgery (CSRF) SNYK-RHEL8-KRB5LIBS-6152608	No Known Exploit
	586	Heap-based Buffer Overflow SNYK-RHEL8-SQLITELIBS-6140699	No Known Exploit

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