Add initial automated release build workflow #63

Job	Run time
CI matrix / Assert PR branch is ahead of primary	4s
Makefile / Assert PR branch is ahead of primary	4s
CI matrix / Run tests (go-ci-oldstable, false)	28s
CI matrix / Run tests (go-ci-stable, false)	39s
CI matrix / Run tests (go-ci-unstable, true)	39s
CI matrix / Lint codebase (go-ci-oldstable, false)	39s
CI matrix / Lint codebase (go-ci-stable, false)	55s
CI matrix / Lint codebase (go-ci-unstable, true)	46s
CI matrix / Build codebase (go-ci-oldstable, false)	26s
CI matrix / Build codebase (go-ci-stable, false)	25s
CI matrix / Build codebase (go-ci-unstable, true)	25s
CI matrix / Optional Linting / Assert PR branch is ahead of primary	4s
Makefile / Build codebase using Makefile quick recipe	28s
Makefile / Lint codebase using Makefile	1m 14s
Makefile / Build codebase using Makefile all recipe	0s
CI matrix / Optional Linting / Lint codebase using optional linters (go-ci-oldstable, true)	31s
CI matrix / Optional Linting / Lint codebase using optional linters (go-ci-stable, true)	44s
CI matrix / Optional Linting / Lint codebase using optional linters (go-ci-unstable, true)	46s
	9m 17s

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