docs: Version placeholders in snippets fixed #1496

Job	Run time
Checks	4m 57s
Compile and test (2.13)	8m 0s
Compile Benchmarks	5m 19s
Compile and test (3.3)	8m 39s
Gradle tests	10m 23s
Maven tests	10m 31s
sbt scripted tests (gen-scala-server, 2.13)	11m 18s
sbt scripted tests (gen-java, 2.13)	7m 28s
sbt scripted tests (scala-2_13, 2.13)	6m 41s
sbt scripted tests (scala3, 3.3)	6m 56s
	1h 20m 12s

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