[KYUUBI #6171][FOLLOWUP] Restore flink-1.16 profile to recover Flink IT

# 🔍 Description

I forgot the Flink cross-version verification integration tests require using the target Flink version to bootstrap a Flink Mini Cluster, this PR restores `flink-1.16` profile to recover Flink IT

## Types of changes 🔖

- [x] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)

## Test Plan 🧪

Pass GA.

---

# Checklist 📝

- [x] This patch was not authored or co-authored using [Generative Tooling](https://www.apache.org/legal/generative-tooling.html)

**Be nice. Be informative.**

Closes #6176 from pan3793/6171-followup.

Closes #6171

f2ffcc9b1 [Cheng Pan] [KYUUBI #6171][FOLLOWUP] Restore flink-1.16 profile to recover Flink IT

Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>

pom.xml

@@ -2315,6 +2315,13 @@
             </repositories>
         </profile>
 
+        <profile>
+            <id>flink-1.16</id>
+            <properties>
+                <flink.version>1.16.3</flink.version>
+            </properties>
+        </profile>
+
         <profile>
             <id>flink-1.17</id>
             <properties>