chore(bazel): update gapic-generator-php v1.6.7 (#5922)

PiperOrigin-RevId: 515149688
Source-Link: googleapis/googleapis@b0251f4
Source-Link: https://github.com/googleapis/googleapis-gen/commit/fa1bb764a34f44b5e74e6cd6d1af3f3d14011625
Copy-Tag: eyJwIjoiRGlhbG9nZmxvdy8uT3dsQm90LnlhbWwiLCJoIjoiZmExYmI3NjRhMzRmNDRiNWU3NGU2Y2Q2ZDFhZjNmM2QxNDAxMTYyNSJ9

feat: added support for custom content types
docs: clarified wording around quota usage
PiperOrigin-RevId: 513681148
Source-Link: googleapis/googleapis@3b8869b
Source-Link: https://github.com/googleapis/googleapis-gen/commit/c1c7570b315ff2cc965c17a3c9a834b2af18ae0c
Copy-Tag: eyJwIjoiRGlhbG9nZmxvdy8uT3dsQm90LnlhbWwiLCJoIjoiYzFjNzU3MGIzMTVmZjJjYzk2NWMxN2EzYzlhODM0YjJhZjE4YWUwYyJ9

Author: gcf-owl-bot[bot]

metadata/V2/ConversationProfile.php

@@ -265,7 +265,7 @@ public function getAgentTest()
         $description = 'description-1724546052';
         $avatarUri = 'avatarUri-402824826';
         $enableLogging = false;
-        $classificationThreshold = 1.11581064E8;
+        $classificationThreshold = 10917768;
         $expectedResponse = new Agent();
         $expectedResponse->setParent($parent2);
         $expectedResponse->setDisplayName($displayName);
@@ -699,7 +699,7 @@ public function setAgentTest()
         $description = 'description-1724546052';
         $avatarUri = 'avatarUri-402824826';
         $enableLogging = false;
-        $classificationThreshold = 1.11581064E8;
+        $classificationThreshold = 10917768;
         $expectedResponse = new Agent();
         $expectedResponse->setParent($parent);
         $expectedResponse->setDisplayName($displayName);