Skip tests asserting an exact error message (nodejs#142)

Merging based on marja@ request.

Author: victorgomes

test/parallel/parallel.status

@@ -136,6 +136,9 @@ test-tls-client-mindhsize: PASS, FLAKY
 test-tls-write-error: PASS, FLAKY
 # https://github.com/nodejs/node/issues/48047
 test-http-pipeline-flood: SKIP
+# https://github.com/nodejs/node/issues/43676
+parallel/test-repl-pretty-stack: SKIP
+parallel/test-repl-pretty-custom-stack: SKIP
 
 [$asan==on]
 # https://github.com/nodejs/node/issues/39655