fix(bigquery-jdbc): fix manual commit mode failure for non-US regions (#13285)

## Problem

Manual commit mode fails when using BigQuery JDBC with non-US datasets.

**STR (Steps to Reproduce)**

1. Create BigQuery JDBC connection
2. Set a non-US location (e.g. `EU`) via `Location` property
3. Enable session mode (`EnableSession = 1`)
4. Disable auto-commit:
   ```java
   conn.setAutoCommit(false);
   ```
5. Execute a simple query:
 ```sql
SELECT 1;
```

**ER (Expected Result)**
- Query executes successfully in manual commit mode
- BigQuery uses configured Location (e.g. EU)
- No region mismatch errors occur

**AR (Actual Result)**

Query execution fails with:

```
GoogleJsonResponseException: 400 Bad Request
INVALID_ARGUMENT
Error: 3848323
```

**Sample java code:**
```java
String jdbcUrl =
"jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443";

Properties props = new Properties();
props.put("OAuthType", "0");
props.put("OAuthPvtKeyPath", "<key-file-path>");
props.put("ProjectId", "<project-id>");
props.put("Location", "EU");
props.put("EnableSession", "1");

try (Connection conn = DriverManager.getConnection(jdbcUrl, props)) {
    conn.setAutoCommit(false);

    try (PreparedStatement ps = conn.prepareStatement("SELECT 1;")) {
        ps.execute();
    }
}
```

Co-authored-by: Jin Seop Kim <jinseop@google.com>

Author: yagudin10

java-bigquery/google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/BigQueryImpl.java

@@ -416,7 +416,10 @@ public Job create(JobInfo jobInfo, JobOption... options) {
         new Supplier<JobId>() {
           @Override
           public JobId get() {
-            return JobId.of();
+            // Explicitly set the location for a new job when provided in options.
+            // Otherwise, the job may be created with an incorrect location
+            // (e.g. in transaction mode outside the US).
+            return JobId.of().setLocation(getOptions().getLocation());
           }
         };
     return create(jobInfo, idProvider, options);

java-bigquery/google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/spi/v2/HttpBigQueryRpcTest.java

@@ -795,6 +795,8 @@ public void testCreateJobTelemetry() throws Exception {
           "{\"kind\":\"bigquery#job\",\"id\":\""
               + PROJECT_ID
               + ":"
+              + LOCATION
+              + ":"
               + JOB_ID
               + "\",\"status\":{\"state\":\"DONE\"}}");
 
@@ -804,7 +806,7 @@ public void testCreateJobTelemetry() throws Exception {
 
       verifyRequest("POST", "/projects/" + PROJECT_ID + "/jobs");
       Map<String, String> attributes = new HashMap<>();
-      attributes.put("bq.rpc.response.job.id", PROJECT_ID + ":" + JOB_ID);
+      attributes.put("bq.rpc.response.job.id", PROJECT_ID + ":" + LOCATION + ":" + JOB_ID);
       attributes.put("bq.rpc.response.job.status.state", "DONE");
       verifySpan(
           "com.google.cloud.bigquery.BigQueryRpc.createJob",