Update php

Changes:

- https://github.com/docker-library/php/commit/2a6aa0f: Merge pull request https://github.com/docker-library/php/pull/1027 from infosiftr/stretch-pinning
- https://github.com/docker-library/php/commit/1daa5da: Properly pin all buster dists in stretch-based images

library/php

@@ -76,22 +76,22 @@ Directory: 7.3/buster/zts
 
 Tags: 7.3.19-cli-stretch, 7.3-cli-stretch, 7.3.19-stretch, 7.3-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 424dbd51d6699f2432f68f22cc2a910672a7bdfd
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.3/stretch/cli
 
 Tags: 7.3.19-apache-stretch, 7.3-apache-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 424dbd51d6699f2432f68f22cc2a910672a7bdfd
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.3/stretch/apache
 
 Tags: 7.3.19-fpm-stretch, 7.3-fpm-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 424dbd51d6699f2432f68f22cc2a910672a7bdfd
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.3/stretch/fpm
 
 Tags: 7.3.19-zts-stretch, 7.3-zts-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: 424dbd51d6699f2432f68f22cc2a910672a7bdfd
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.3/stretch/zts
 
 Tags: 7.3.19-cli-alpine3.12, 7.3-cli-alpine3.12, 7.3.19-alpine3.12, 7.3-alpine3.12, 7.3.19-cli-alpine, 7.3-cli-alpine, 7.3.19-alpine, 7.3-alpine
@@ -146,22 +146,22 @@ Directory: 7.2/buster/zts
 
 Tags: 7.2.31-cli-stretch, 7.2-cli-stretch, 7.2.31-stretch, 7.2-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: a041c4250ba98a53264a452a907288a40d94aa79
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.2/stretch/cli
 
 Tags: 7.2.31-apache-stretch, 7.2-apache-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: a041c4250ba98a53264a452a907288a40d94aa79
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.2/stretch/apache
 
 Tags: 7.2.31-fpm-stretch, 7.2-fpm-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: a041c4250ba98a53264a452a907288a40d94aa79
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.2/stretch/fpm
 
 Tags: 7.2.31-zts-stretch, 7.2-zts-stretch
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: a041c4250ba98a53264a452a907288a40d94aa79
+GitCommit: 1daa5daf973d3bbd3e18e14ecdf88b791bc0a89e
 Directory: 7.2/stretch/zts
 
 Tags: 7.2.31-cli-alpine3.12, 7.2-cli-alpine3.12, 7.2.31-alpine3.12, 7.2-alpine3.12, 7.2.31-cli-alpine, 7.2-cli-alpine, 7.2.31-alpine, 7.2-alpine