fix: temp patch cloud.google.com/go ambiguity (#2560)

Force dependency on `cloud.google.com/go` main module to resolve ambiguity.

Fixes #2543
Updates #2559

doc.go

@@ -143,3 +143,10 @@
 //		 // Do something with the response
 //		 fmt.Println(op.Response)
 package api
+
+import (
+	// Force dependency on main module to ensure it is unambiguous during
+	// module resolution.
+	// See: https://github.com/googleapis/google-api-go-client/issues/2559.
+	_ "cloud.google.com/go/civil"
+)

go.mod

@@ -3,6 +3,7 @@ module google.golang.org/api
 go 1.19
 
 require (
+	cloud.google.com/go v0.112.0
 	cloud.google.com/go/auth v0.3.0
 	cloud.google.com/go/auth/oauth2adapt v0.2.2
 	cloud.google.com/go/compute/metadata v0.3.0

go.sum

@@ -1,4 +1,6 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.112.0 h1:tpFCD7hpHFlQ8yPwT3x+QeXqc2T6+n6T+hmABHfDUSM=
+cloud.google.com/go v0.112.0/go.mod h1:3jEEVwZ/MHU4djK5t5RHuKOA/GbLddgTdVubX1qnPD4=
 cloud.google.com/go/auth v0.3.0 h1:PRyzEpGfx/Z9e8+lHsbkoUVXD0gnu4MNmm7Gp8TQNIs=
 cloud.google.com/go/auth v0.3.0/go.mod h1:lBv6NKTWp8E3LPzmO1TbiiRKc4drLOfHsgmlH9ogv5w=
 cloud.google.com/go/auth/oauth2adapt v0.2.2 h1:+TTV8aXpjeChS9M+aTtN/TjdQnzJvmzKFt//oWu7HX4=