test(java-bigquerystorage): Use regex to match traceID

This should resolve the test failure in the java-bigquerystorage module:
https://github.com/googleapis/google-cloud-java/actions/runs/23780714031/job/69292481126?pr=12299

b/492517601

Author: suztomo

java-bigquerystorage/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/ConnectionWorkerTest.java

@@ -118,17 +118,17 @@ void testMultiplexedAppendSuccess_NonNullTraceId() throws Exception {
     testMultiplexedIngestion(
         /* sw1TraceId= */ "header_1:trailer_1",
         /* sw2TraceId= */ "header_2:trailer_2",
-        /* expectedSW1TraceId= */ "java-streamwriter header_1:trailer_1",
-        /* expectedSW2TraceId= */ "java-streamwriter header_2:trailer_2");
+        /* expectedSW1TraceId= */ "java-streamwriter(:.+)? header_1:trailer_1",
+        /* expectedSW2TraceId= */ "java-streamwriter(:.+)? header_2:trailer_2");
   }
 
   @Test
   void testMultiplexedAppendSuccess_EmptyTraceId() throws Exception {
     testMultiplexedIngestion(
         /* sw1TraceId= */ "header_1:trailer_1",
         /* sw2TraceId= */ "",
-        /* expectedSW1TraceId= */ "java-streamwriter header_1:trailer_1",
-        /* expectedSW2TraceId= */ "java-streamwriter");
+        /* expectedSW1TraceId= */ "java-streamwriter(:.+)? header_1:trailer_1",
+        /* expectedSW2TraceId= */ "java-streamwriter(:.+)?");
   }
 
   private void testMultiplexedIngestion(
@@ -216,7 +216,7 @@ private void testMultiplexedIngestion(
             assertThat(
                     serverRequest.getProtoRows().getWriterSchema().getProtoDescriptor().getName())
                 .isEqualTo("foo");
-            assertThat(serverRequest.getTraceId()).isEqualTo(expectedSW1TraceId);
+            assertThat(serverRequest.getTraceId()).matches(expectedSW1TraceId);
             break;
           case 1:
             // The write stream is empty until we enter multiplexing.
@@ -232,7 +232,7 @@ private void testMultiplexedIngestion(
             assertThat(
                     serverRequest.getProtoRows().getWriterSchema().getProtoDescriptor().getName())
                 .isEqualTo("complicate");
-            assertThat(serverRequest.getTraceId()).isEqualTo(expectedSW2TraceId);
+            assertThat(serverRequest.getTraceId()).matches(expectedSW2TraceId);
             break;
           case 3:
             // Schema is empty if not at the first request after table switch.

java-bigquerystorage/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonStreamWriterTest.java

@@ -248,8 +248,8 @@ void testSingleAppendSimpleJson() throws Exception {
               .getRows()
               .getSerializedRows(0),
           expectedProto.toByteString());
-      assertEquals(
-          "java-jsonwriter test:empty", testBigQueryWrite.getAppendRequests().get(0).getTraceId());
+      assertThat(testBigQueryWrite.getAppendRequests().get(0).getTraceId())
+          .matches("java-jsonwriter(:.+)? test:empty");
     }
   }
 
@@ -291,8 +291,8 @@ void testSingleAppendSimpleGson() throws Exception {
               .getRows()
               .getSerializedRows(0),
           expectedProto.toByteString());
-      assertEquals(
-          "java-jsonwriter test:empty", testBigQueryWrite.getAppendRequests().get(0).getTraceId());
+      assertThat(testBigQueryWrite.getAppendRequests().get(0).getTraceId())
+          .matches("java-jsonwriter(:.+)? test:empty");
     }
   }
 
@@ -339,7 +339,8 @@ void testFlexibleColumnAppend() throws Exception {
               .getRows()
               .getSerializedRows(0),
           expectedProto.toByteString());
-      assertEquals("java-jsonwriter", testBigQueryWrite.getAppendRequests().get(0).getTraceId());
+      assertThat(testBigQueryWrite.getAppendRequests().get(0).getTraceId())
+          .matches("java-jsonwriter(:.+)?");
     }
   }
 
@@ -561,7 +562,8 @@ void testSingleAppendMultipleSimpleJson() throws Exception {
               .getProtoRows()
               .getRows()
               .getSerializedRowsCount());
-      assertEquals("java-jsonwriter", testBigQueryWrite.getAppendRequests().get(0).getTraceId());
+      assertThat(testBigQueryWrite.getAppendRequests().get(0).getTraceId())
+          .matches("java-jsonwriter(:.+)?");
       for (int i = 0; i < 4; i++) {
         assertEquals(
             testBigQueryWrite