Pekko becomes a TLP (#247) #710

Job	Run time
Compile Benchmarks	3m 30s
Checks	4m 11s
Compile and test (2.12.18, 8)	8m 8s
Maven tests	5m 4s
Gradle tests	5m 42s
Compile and test (2.12.18, 11)	3m 45s
sbt scripted tests (gen-scala-server, 2.12)	10m 58s
Compile and test (2.13.12, 8)	23m 31s
sbt scripted tests (gen-java, 2.12)	6m 38s
Compile and test (2.13.12, 11)	7m 29s
Compile and test (3.3.1, 8)	7m 10s
Docs	5m 4s
Compile and test (3.3.1, 11)	7m 29s
	1h 38m 39s

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