Upgrade composer version to 2.2.

PiperOrigin-RevId: 642634701
Change-Id: I17363c6858282f8e565e472ddea86ae559533752

builders/php/acceptance/gcf_test.go

@@ -169,7 +169,7 @@ func TestFailures(t *testing.T) {
 		{
 			App:                        "fail_vendored_framework_no_router_script",
 			VersionInclusionConstraint: "< 8.2.0",
-			MustMatch:                  `functions framework router script vendor/bin/router\.php is not present`,
+			MustMatch:                  `functions framework router script vendor/google/cloud-functions-framework/router.php is not present`,
 		},
 		{
 			App:                        "fail_vendored_no_framework_no_installed_json",

cmd/php/cloudfunctions/main.go

@@ -24,7 +24,7 @@ import (
 
 const (
 	// routerScript is the path to the functions framework invoker script.
-	routerScript = "vendor/bin/router.php"
+	routerScript = "vendor/google/cloud-functions-framework/router.php"
 )
 
 func main() {

cmd/php/cloudfunctions/main_test.go

@@ -63,7 +63,7 @@ func TestEntrypoint(t *testing.T) {
 		t.Fatalf("unexpected error creating entrypoint: %v", err)
 	}
 
-	want := "serve -enable-dynamic-workers -workers=1024 vendor/bin/router.php"
+	want := "serve -enable-dynamic-workers -workers=1024 vendor/google/cloud-functions-framework/router.php"
 	if ep.Command != want {
 		t.Errorf("entrypoint set wrong, got: %q, want: %q", ep.Command, want)
 	}

cmd/php/composer_install/main.go

@@ -33,7 +33,7 @@ var (
 	composerLayer    = "composer"
 	composerJSON     = "composer.json"
 	composerSetup    = "composer-setup"
-	composerVer      = "2.1.3"
+	composerVer      = "2.2.24"
 	versionKey       = "version"
 	composerSigURL   = "https://composer.github.io/installer.sig"
 	composerSetupURL = "https://getcomposer.org/installer"

cmd/php/functions_framework/main.go

@@ -44,7 +44,7 @@ const (
 	ffPackagistURL = "https://packagist.org/packages/google/cloud-functions-framework"
 
 	// routerScript is the path to the functions framework invoker script.
-	routerScript = "vendor/bin/router.php"
+	routerScript = "vendor/google/cloud-functions-framework/router.php"
 
 	// cacheTag is the cache tag for the `composer install` layer. We only cache in one case: There
 	// is no composer.json file and there is no vendor directory (i.e. a dependency-less function).