Resolve pitest for profile misc-2

[Kevin222004]

Related to #7797

kill mutation

checkstyle/.ci/pitest-suppressions/pitest-misc-suppressions.xml

Lines 147 to 163 in aad6891

	<mutation unstable="false">
	<sourceFile>SuppressWarningsHolder.java</sourceFile>
	<mutatedClass>com.puppycrawl.tools.checkstyle.checks.SuppressWarningsHolder</mutatedClass>
	<mutatedMethod>getStringExpr</mutatedMethod>
	<mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_0</mutator>
	<description>RemoveSwitch 0 mutation</description>
	<lineContent>switch (firstChild.getType()) {</lineContent>
	</mutation>
	<mutation unstable="false">
	<sourceFile>SuppressWarningsHolder.java</sourceFile>
	<mutatedClass>com.puppycrawl.tools.checkstyle.checks.SuppressWarningsHolder</mutatedClass>
	<mutatedMethod>getStringExpr</mutatedMethod>
	<mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_1</mutator>
	<description>RemoveSwitch 1 mutation</description>
	<lineContent>switch (firstChild.getType()) {</lineContent>
	</mutation>

[nrmancuso]

@Kevin222004 please reference #12341 (instead of #7797) for any new pitest issues as you create them, this will help others to find your issues/PRs as examples in the future.

[romani]

as of now, all misc survivals are resolved by other PRs of this project