[build] Use 8.2 tag of ubi-minimal (#82688)

In kibana#82475 we prevented the update of crypto-policies as it's
currently not compatible with libnss. This recent latest tag includes
the crypto-policies which we need to avoid for now.

Signed-off-by: Tyler Smalley <tyler.smalley@elastic.co>

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

src/dev/build/tasks/os_packages/docker_generator/run.ts

@@ -40,7 +40,7 @@ export async function runDockerGenerator(
   ubi: boolean = false
 ) {
   // UBI var config
-  const baseOSImage = ubi ? 'docker.elastic.co/ubi8/ubi-minimal:latest' : 'centos:8';
+  const baseOSImage = ubi ? 'docker.elastic.co/ubi8/ubi-minimal:8.2' : 'centos:8';
   const ubiVersionTag = 'ubi8';
   const ubiImageFlavor = ubi ? `-${ubiVersionTag}` : '';