devel/rubygem-google-apis-core: Update to 0.15.0

Changes:	https://github.com/googleapis/google-api-ruby-client/releases
		https://github.com/googleapis/google-api-ruby-client/blob/main/google-apis-core/CHANGELOG.md

devel/rubygem-google-apis-core/Makefile

 PORTNAME=	google-apis-core
-PORTVERSION=	0.14.1
+PORTVERSION=	0.15.0
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 

devel/rubygem-google-apis-core/distinfo

-TIMESTAMP = 1710712690
-SHA256 (rubygem/google-apis-core-0.14.1.gem) = 134d8df81e1dce803f0604ab90135c3a387f0884fee83958b6fe08905387d3f9
-SIZE (rubygem/google-apis-core-0.14.1.gem) = 36352
+TIMESTAMP = 1715843680
+SHA256 (rubygem/google-apis-core-0.15.0.gem) = 9c95ee9068c6b1fb3f8698b2856f53a031c3a68e886d074cc2e9a482e070a6e4
+SIZE (rubygem/google-apis-core-0.15.0.gem) = 36352