[QD-7821] Ensure that newly generated rule lists are mutable

While `Arrays.asList()` creates an `ArrayList`, this is NOT a
`java.util.ArrayList` - and is in fact immutable.
Update the tests to catch this

sarif/src/main/java/com/jetbrains/qodana/sarif/baseline/DescriptorWithLocation.java

@@ -51,13 +51,11 @@ void addTo(Run run) {
             getOrCreate(e::getRules, e::setRules, ArrayList::new)
                     .add(descriptor);
         } else {
-            // Collections.singletonList() is immutable
-            //noinspection ArraysAsListWithZeroOrOneArgument
             getOrCreate(tool::getExtensions, tool::setExtensions, HashSet::new)
                     // we don't want to copy all rules from the source AND not override them
                     .add(location.shallowCopy()
                             .withIsComprehensive(false)
-                            .withRules(Arrays.asList(descriptor))
+                            .withRules(new ArrayList<>(Collections.singletonList(descriptor)))
                     );
         }
 

sarif/src/test/java/com/jetbrains/qodana/sarif/BaselineTest.java

@@ -11,6 +11,7 @@
 import java.util.stream.Collectors;
 
 import static com.jetbrains.qodana.sarif.baseline.BaselineCalculation.Options.DEFAULT;
+import static org.junit.jupiter.api.Assertions.assertAll;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class BaselineTest {
@@ -177,7 +178,7 @@ public void testAbsentResultWithChangedIdAndSameVersion() throws IOException {
         SarifReport report = readReport("src/test/resources/testData/AbsentBaselineTest/report.json");
         SarifReport baseline = readReport("src/test/resources/testData/AbsentBaselineTest/baseline.json");
 
-        doTest(report, baseline, 17, 1, 1, new BaselineCalculation.Options(true));
+        doTest(report, baseline, 1, 17, 18, new BaselineCalculation.Options(true));
 
         Set<String> knownDescriptorIds = RuleUtil.allRules(report)
                 .map(ReportingDescriptor::getId)
@@ -198,7 +199,7 @@ public void testAbsentResultWithChangedIdAndOldVersion() throws IOException {
         SarifReport report = readReport("src/test/resources/testData/AbsentBaselineTest/report.json");
         SarifReport baseline = readReport("src/test/resources/testData/AbsentBaselineTest/baseline_old.json");
 
-        doTest(report, baseline, 17, 1, 1, new BaselineCalculation.Options(true));
+        doTest(report, baseline, 0, 18, 19, new BaselineCalculation.Options(true));
 
         Set<String> knownDescriptorIds = RuleUtil.allRules(report)
                 .map(ReportingDescriptor::getId)
@@ -214,7 +215,6 @@ public void testAbsentResultWithChangedIdAndOldVersion() throws IOException {
         assertEquals(new ArrayList<String>(), withoutDescriptor);
     }
 
-
     private void doTest(SarifReport report,
                         SarifReport baseline,
                         int expectedUnchanged,
@@ -223,9 +223,12 @@ private void doTest(SarifReport report,
                         BaselineCalculation.Options options
     ) {
         BaselineCalculation calculation = BaselineCalculation.compare(report, baseline, options);
-        assertEquals(expectedUnchanged, calculation.getUnchangedResults(), "Unchanged:");
-        assertEquals(expectedAbsent, calculation.getAbsentResults(), "Absent:");
-        assertEquals(expectedNew, calculation.getNewResults(), "New:");
+        assertAll(
+                () -> assertEquals(expectedUnchanged, calculation.getUnchangedResults(), "Unchanged:"),
+                () -> assertEquals(expectedAbsent, calculation.getAbsentResults(), "Absent:"),
+                () -> assertEquals(expectedNew, calculation.getNewResults(), "New:")
+        );
+
         List<Result> results = report.getRuns().get(0).getResults();
 
         if (!options.isFillBaselineState()) {
@@ -242,9 +245,11 @@ private void doTest(SarifReport report,
         List<Result> resultsUnchanged = grouped.get(Result.BaselineState.UNCHANGED);
         List<Result> resultsAbsent = grouped.get(Result.BaselineState.ABSENT);
         List<Result> resultsNew = grouped.get(Result.BaselineState.NEW);
-        assertEquals(expectedUnchanged, resultsUnchanged == null ? 0 : resultsUnchanged.size(), "Unchanged:");
-        assertEquals(expectedAbsent, resultsAbsent == null ? 0 : resultsAbsent.size(), "Absent:");
-        assertEquals(expectedNew, resultsNew == null ? 0 : resultsNew.size(), "New:");
+        assertAll(
+                () -> assertEquals(expectedUnchanged, resultsUnchanged == null ? 0 : resultsUnchanged.size(), "Unchanged:"),
+                () -> assertEquals(expectedAbsent, resultsAbsent == null ? 0 : resultsAbsent.size(), "Absent:"),
+                () -> assertEquals(expectedNew, resultsNew == null ? 0 : resultsNew.size(), "New:")
+        );
     }
 
     private void doTest(SarifReport report,