Update mariadb

Changes:

- https://github.com/docker-library/mariadb/commit/33058df: Update to 1:10.5.6+maria~focal
- https://github.com/docker-library/mariadb/commit/b5c4144: Update to 1:10.4.15+maria~focal
- https://github.com/docker-library/mariadb/commit/affe478: Update to 1:10.3.25+maria~focal
- https://github.com/docker-library/mariadb/commit/0bd0a2e: Update to 1:10.1.47+maria-1~bionic
- https://github.com/docker-library/mariadb/commit/3ad38c7: Update to 1:10.2.34+maria~bionic

library/mariadb

@@ -4,27 +4,27 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/mariadb.git
 
-Tags: 10.5.5-focal, 10.5-focal, 10-focal, focal, 10.5.5, 10.5, 10, latest
+Tags: 10.5.6-focal, 10.5-focal, 10-focal, focal, 10.5.6, 10.5, 10, latest
 Architectures: amd64, arm64v8, ppc64le
-GitCommit: 88ff4eed96a7662c1a06b16397592af954770070
+GitCommit: 33058df3907bf6daaa51db8fd01105226506122a
 Directory: 10.5
 
-Tags: 10.4.14-focal, 10.4-focal, 10.4.14, 10.4
+Tags: 10.4.15-focal, 10.4-focal, 10.4.15, 10.4
 Architectures: amd64, arm64v8, ppc64le
-GitCommit: 88ff4eed96a7662c1a06b16397592af954770070
+GitCommit: b5c414408d9fea9d4cab9370bdf6716aa2e9c648
 Directory: 10.4
 
-Tags: 10.3.24-focal, 10.3-focal, 10.3.24, 10.3
+Tags: 10.3.25-focal, 10.3-focal, 10.3.25, 10.3
 Architectures: amd64, arm64v8, ppc64le
-GitCommit: 88ff4eed96a7662c1a06b16397592af954770070
+GitCommit: affe478a1811a7abeb76fd623c29c24777e6f07a
 Directory: 10.3
 
-Tags: 10.2.33-bionic, 10.2-bionic, 10.2.33, 10.2
+Tags: 10.2.34-bionic, 10.2-bionic, 10.2.34, 10.2
 Architectures: amd64, arm64v8, ppc64le
-GitCommit: 88ff4eed96a7662c1a06b16397592af954770070
+GitCommit: 3ad38c77d29010ecb82231c15651e1b425af925d
 Directory: 10.2
 
-Tags: 10.1.46-bionic, 10.1-bionic, 10.1.46, 10.1
+Tags: 10.1.47-bionic, 10.1-bionic, 10.1.47, 10.1
 Architectures: amd64, arm64v8, ppc64le
-GitCommit: 88ff4eed96a7662c1a06b16397592af954770070
+GitCommit: 0bd0a2eaecf32990656d0b66bd89ebf47ecb44ad
 Directory: 10.1