Build: Bump hadoop2 from 2.7.3 to 3.3.6

Bumps `hadoop2` from 2.7.3 to 3.3.6.

Updates `org.apache.hadoop:hadoop-client` from 2.7.3 to 3.3.6

Updates `org.apache.hadoop:hadoop-common` from 2.7.3 to 3.3.6

Updates `org.apache.hadoop:hadoop-hdfs` from 2.7.3 to 3.3.6

Updates `org.apache.hadoop:hadoop-mapreduce-client-core` from 2.7.3 to 3.3.6

Updates `org.apache.hadoop:hadoop-minicluster` from 2.7.3 to 3.3.6

---
updated-dependencies:
- dependency-name: org.apache.hadoop:hadoop-client
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.apache.hadoop:hadoop-common
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.apache.hadoop:hadoop-hdfs
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.apache.hadoop:hadoop-mapreduce-client-core
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.apache.hadoop:hadoop-minicluster
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

gradle/libs.versions.toml

@@ -42,7 +42,7 @@ flink117 = { strictly = "[1.17, 1.18[", prefer = "1.17.1"}
 flink118 =  { strictly = "[1.18, 1.19[", prefer = "1.18.1"}
 google-libraries-bom = "26.28.0"
 guava = "33.0.0-jre"
-hadoop2 = "2.7.3"
+hadoop2 = "3.3.6"
 hadoop3-client = "3.3.6"
 httpcomponents-httpclient5 = "5.3"
 hive2 = { strictly = "[2, 3[", prefer = "2.3.9"} # see rich version usage explanation above