v2.2.0

• Allows for any pre-1.0 version of google/apiclient-services moving forward (#1260)
• Allows firebase/jwt:5.0 (#1258)
• Bumps google/auth to 1.0 (#1242)
• Misc bug fixes (#1177, #1191, #1240, #1241, #1209, #1251 #1259, #1243)