Make CI: Temporarily disable tests with OTP-27

There are two known OTP-27 bugs making tests fail.
Until they are fixed (OTP-27.1.2 most likely) we
disable OTP-27 for tests.

Author: lhoguin

.github/workflows/test-make.yaml

@@ -57,7 +57,7 @@ jobs:
       matrix:
         erlang_version:
         - '26'
-        - '27'
+#        - '27'
         elixir_version:
         - '1.17'
         metadata_store: