Bump version to 2.11.0-rc1 (#17751) #69

Job	Run time
changes	10s
Ensure Go modules synchronicity	1m 11s
Check changes to generated code	9m 59s
Lint Go code	1m 52s
Build & cache Go code	3m 38s
Build, test & lint UI code	0s
Run unit tests for Go packages	4m 27s
Run end-to-end tests (v1.29.1)	48m 58s
Run unit tests with -race for Go packages	8m 5s
Run end-to-end tests (v1.28.6)	44m 51s
Run end-to-end tests (v1.27.10)	46m 27s
Run end-to-end tests (v1.26.13)	46m 33s
Run end-to-end tests (v1.25.16)	46m 18s
Process & analyze test artifacts	0s
E2E Tests - Composite result	1s
	4h 22m 30s

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