FirebaseCore 6.0.1 changelog (#2997)

Author: maksymmalyhin

Firebase/Core/CHANGELOG.md

@@ -1,3 +1,6 @@
+# v6.0.1 -- M48
+- [changed] Allowed `FirebaseApp` name to accept any alpha-numeric character instead of only ASCII. (#2609)
+
 # v6.0.0 -- M47
 - [changed] Added support for CocoaPods 1.7.x `:generate_multiple_pod_projects` feature. (#2751)
 - [removed] Remove FIRAnalyticsConfiguration from Public header. Use from FirebaseAnalytics. (#2728)