Update cssnr/update-version-tags-action action to v2 #141

Job	Run time
Checkout JUnit reports	31s
Checkout JUnit reports with non-existent branch	10s
Generate split indexes	4s
Test #0	31s
Test #3	32s
Test #1	41s
Test #2	38s
Merge JUnit reports with existing branch	36s
Merge JUnit reports with new branch	1m 47s
	5m 30s

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