Update postgres

Changes:

- docker-library/postgres@e8cb2ac: Merge pull request docker-library/postgres#808 from infosiftr/PGHOST
- docker-library/postgres@a6b4262: Merge pull request docker-library/postgres#811 from infosiftr/alpine3.13
- docker-library/postgres@188bf13: Update to Alpine 3.13
- docker-library/postgres@ba30220: Explicitly unset PGHOST for temporary server communications

Author: docker-library-bot

library/postgres

@@ -6,60 +6,60 @@ GitRepo: https://github.com/docker-library/postgres.git
 
 Tags: 13.1, 13, latest
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: ba302205a1300a5ad262ee770f7ac8a1038e8fde
 Directory: 13
 
 Tags: 13.1-alpine, 13-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: e8cb2acbb372f0c89219792f82b0bdd2e405602f
 Directory: 13/alpine
 
 Tags: 12.5, 12
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: ba302205a1300a5ad262ee770f7ac8a1038e8fde
 Directory: 12
 
 Tags: 12.5-alpine, 12-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: e8cb2acbb372f0c89219792f82b0bdd2e405602f
 Directory: 12/alpine
 
 Tags: 11.10, 11
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: ba302205a1300a5ad262ee770f7ac8a1038e8fde
 Directory: 11
 
 Tags: 11.10-alpine, 11-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: e8cb2acbb372f0c89219792f82b0bdd2e405602f
 Directory: 11/alpine
 
 Tags: 10.15, 10
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: ba302205a1300a5ad262ee770f7ac8a1038e8fde
 Directory: 10
 
 Tags: 10.15-alpine, 10-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: e8cb2acbb372f0c89219792f82b0bdd2e405602f
 Directory: 10/alpine
 
 Tags: 9.6.20, 9.6, 9
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: ba302205a1300a5ad262ee770f7ac8a1038e8fde
 Directory: 9.6
 
 Tags: 9.6.20-alpine, 9.6-alpine, 9-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: e8cb2acbb372f0c89219792f82b0bdd2e405602f
 Directory: 9.6/alpine
 
 Tags: 9.5.24, 9.5
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: ba302205a1300a5ad262ee770f7ac8a1038e8fde
 Directory: 9.5
 
 Tags: 9.5.24-alpine, 9.5-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 03e769531fff4c97cb755e4a608b24935ceeee27
+GitCommit: e8cb2acbb372f0c89219792f82b0bdd2e405602f
 Directory: 9.5/alpine