Update php-buildpack to v4.3.22

config/blobs.yml

@@ -123,10 +123,6 @@ python-buildpack/python_buildpack-cached-v1.5.11.zip:
   object_id: 853d4f79-35a7-41b8-af10-4e3b887af838
   sha: 83c8f4baeb8dbd0134c4b344994092460d37c5f6
   size: 267716020
-php-buildpack/php_buildpack-cached-v4.3.21.zip:
-  object_id: e01b6573-69e1-49b9-9d6c-3d4770a56c29
-  sha: a0778884e5dc07f8cdfebdaf4975d5970b990f74
-  size: 322953560
 nodejs-buildpack/nodejs_buildpack-cached-v1.5.22.zip:
   object_id: fa8b27e6-a2ae-4251-8bb1-8936ff5db1b1
   sha: cb84df558d421f482f6b8b06530e5b4279284060
@@ -175,3 +171,7 @@ go-buildpack/go_buildpack-cached-v1.7.15.zip:
   object_id: 3907109e-27d0-411d-87cc-c674c8fcdc82
   sha: 1cf9accfad31e8245c9a9b98857069100a16ff26
   size: 411021307
+php-buildpack/php_buildpack-cached-v4.3.22.zip:
+  object_id: 64eb0c22-49ee-4568-8a07-68e1450cdea1
+  sha: f13a0a5222bf95d627cce6b9cfd1d2652924c504
+  size: 325501311