🐛 Fix OTP version null check (#211)

* Fix OTP version null check

* Revert "Fix OTP version null check"

This reverts commit 2c433c16ac.

* Check that the resolved versions contain the spec.

* Only perform semver version resolution when spec is not an rc and version-type is not strict

* Move version inclusion check to the end of the function, when we may have prepended a 'v'

* Refactor function return

* Add test case for strict version resolving a spec that is no available version

test/setup-beam.test.js

@@ -413,6 +413,13 @@ async function testGetVersionFromSpec() {
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
   simulateInput('version-type', before)
+
+  before = simulateInput('version-type', 'strict')
+  spec = '22.3.4.3'
+  expected = null
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
 }
 
 async function testParseVersionFile() {