Merge pull request #12342 from scientificlinux/sl7

Update sl container for sl7 to current (build-date=20220502)

library/sl

@@ -7,4 +7,4 @@ Tags: 7, latest
 Architectures: amd64
 GitFetch: refs/heads/7
 Directory: sl7
-GitCommit: 9f6a570e6d5b69fec17584021ff21b08d2f0baa5
+GitCommit: 8f3eb4a3cad836f19d08389e245810d18262a0ae