[Branch-4.14] Fix TLS test stat npe

[horizonzy]

Patch for #3557

Descriptions of the changes in this PR:

The stat is per_channel_bookie_client.bookie_127_0_0_1_60541.FAILED_TLS_HANDSHAKE_COUNTER
The input is: per_channel_bookie_client.bookie_127_0_0_1:60541.FAILED_TLS_HANDSHAKE_COUNTER

The input 127_0_0_1:60541, the : should be replaced by _

The same logic at master branch.

bookkeeper/bookkeeper-server/src/test/java/org/apache/bookkeeper/util/TestUtils.java

Lines 47 to 49 in 255416a

	public static String buildStatsCounterPathFromBookieID(BookieId bookieId) {
	return bookieId.toString().replace('.', '_').replace('-', '_').replace(":", "_");
	}

[horizonzy]

@hangc0276 @dlg99

[horizonzy]

Appned this logic to #3557, so close this.