Merge pull request #8301 from scientificlinux/sl7

Update sl container for sl7 to current (build-date=20200706)

library/sl

@@ -7,7 +7,7 @@ Tags: 7, latest
 Architectures: amd64
 GitFetch: refs/heads/7
 Directory: sl7
-GitCommit: bfba7150be290ff58acb5648d8895b560e7c1b16
+GitCommit: 05036e42b8d8140a5b9023a88b079623a25e49a2
 
 # For the SL6 container
 Tags: 6