Add flawky tests report (#13654)

substrate/.config/nextest.toml

@@ -16,7 +16,7 @@ dir = "target/nextest"
 # * retries = 3
 # * retries = { backoff = "fixed", count = 2, delay = "1s" }
 # * retries = { backoff = "exponential", count = 10, delay = "1s", jitter = true, max-delay = "10s" }
-retries = 0
+retries = 5
 
 # The number of threads to run tests with. Supported values are either an integer or
 # the string "num-cpus". Can be overridden through the `--test-threads` option.
@@ -89,12 +89,12 @@ leak-timeout = "100ms"
 # Output a JUnit report into the given file inside 'store.dir/<profile-name>'.
 # If unspecified, JUnit is not written out.
 
-# path = "junit.xml"
+path = "junit.xml"
 
 # The name of the top-level "report" element in JUnit report. If aggregating
 # reports across different test runs, it may be useful to provide separate names
 # for each report.
-report-name = "nextest-run"
+report-name = "substrate"
 
 # Whether standard output and standard error for passing tests should be stored in the JUnit report.
 # Output is stored in the <system-out> and <system-err> elements of the <testcase> element.