[#10788] improvement(deps): upgrade Hadoop from 2.10.2 to 3.3.6 and remove hadoop2 dependency line

[geyanggang]

What changes were proposed in this pull request?

• Remove hadoop2 version (2.10.2) and its 6 library definitions from libs.versions.toml
• Bump hadoop3 from 3.3.1 to 3.3.6 (including hadoop3-abs, hadoop3-aliyun, hadoop-minikdc)
• Replace all libs.hadoop2.* references with libs.hadoop3.* in 8 build files
• Add Hadoop 3.x runtime dependencies stripped by exclude("*"): hadoop-shaded-guava, hadoop-shaded-protobuf, commons-configuration2, re2j,hadoop-hdfs-client
• Remove outdated hadoop2/hadoop3 conflict comment in catalog-hive

Why are the changes needed?

• The hadoop2 (2.10.2) dependency line brings in outdated transitive dependencies (Jackson 2.6.x, Netty 3.x, Jetty 9.3.x) that are no longer maintained
• hive-metastore3-libs was incorrectly configured with hadoop2 despite Hive 3.1.3 natively depending on Hadoop 3.1.0
• Unifying on a single Hadoop version eliminates classpath conflicts and simplifies dependency management

Fix: #10788

Does this PR introduce any user-facing change?

No.

How was this patch tested?

• Full compilation (./gradlew build -x test) — passed
• Verified hadoop-common-3.3.6 resolves in all affected modules, no Hadoop 2.x JARs in distribution
• All unit tests passed across 12 key modules including catalog-hive, hive-metastore-common, catalog-lakehouse-hudi, catalog-fileset, filesystem-hadoop3, hadoop-common, authorization-ranger, spark-connector, flink-connector, core
• Integration tests pending CI validation

[github-actions]

Code Coverage Report

Overall Project	65.15%	🟢
Files changed	No Java source files changed	-

Module	Coverage
aliyun	1.73%	🔴
api	47.09%	🟢
authorization-common	85.96%	🟢
aws	1.1%	🔴
azure	2.6%	🔴
catalog-common	10.2%	🔴
catalog-fileset	80.02%	🟢
catalog-glue	75.36%	🟢
catalog-hive	81.83%	🟢
catalog-jdbc-clickhouse	79.06%	🟢
catalog-jdbc-common	42.89%	🟢
catalog-jdbc-doris	80.28%	🟢
catalog-jdbc-hologres	54.03%	🟢
catalog-jdbc-mysql	79.23%	🟢
catalog-jdbc-oceanbase	78.38%	🟢
catalog-jdbc-postgresql	82.05%	🟢
catalog-jdbc-starrocks	78.27%	🟢
catalog-kafka	77.01%	🟢
catalog-lakehouse-generic	45.07%	🟢
catalog-lakehouse-hudi	79.1%	🟢
catalog-lakehouse-iceberg	87.27%	🟢
catalog-lakehouse-paimon	77.71%	🟢
catalog-model	77.72%	🟢
cli	44.51%	🟢
client-java	77.63%	🟢
common	48.97%	🟢
core	81.41%	🟢
filesystem-hadoop3	76.97%	🟢
flink	40.55%	🟢
flink-runtime	0.0%	🔴
gcp	14.2%	🔴
hadoop-common	10.39%	🔴
hive-metastore-common	46.14%	🟢
iceberg-common	50.73%	🟢
iceberg-rest-server	65.93%	🟢
integration-test-common	0.0%	🔴
jobs	66.17%	🟢
lance-common	23.88%	🔴
lance-rest-server	57.84%	🟢
lineage	53.02%	🟢
optimizer	82.95%	🟢
optimizer-api	21.95%	🔴
server	85.75%	🟢
server-common	69.52%	🟢
spark	32.79%	🔴
spark-common	39.09%	🔴
trino-connector	33.83%	🔴