[MINOR] Clean up Spark 3.2 build/config/docs leftovers

[LuciferYang]

What changes were proposed in this pull request?

Follow-up to the Spark 3.2 code cleanup PRs (#12522, #12525, #12532, #12524, #12541, #12543, #12548). This picks up the remaining build-system, dev-script, and documentation leftovers that referred to the no-longer-supported Spark 3.2 shim.

package/pom.xml

Drop the <exclude>*spark3.2*</exclude> entry from the maven-clean-plugin fileset. The pattern protected artifacts that are no longer produced. Sibling entries for the currently-supported versions (spark3.3 through spark4.1) are kept.

LICENSE

• Drop 9 stale ./shims/spark32/... paths from the Apache Spark attribution section — the shims/spark32/ directory was removed when Spark 3.2 support was dropped. Sibling ./shims/spark33/... paths kept.
• Drop 6 stale ./backends-clickhouse/src-delta-20/... paths from the Delta Lake attribution section — Delta 2.0 is the Spark-3.2-era Delta, and the directory was removed by [MINOR][CH] Remove orphan Spark 3.2 / Delta 2.0 source directories #12524. Sibling src-delta-23/src-delta-33 lines are left untouched.

dev/run-scala-test.sh, dev/bloop-test.sh

Remove the spark32 / gluten-ut-spark32 module-map entries in both scripts. Both mapped to shims/spark32 and gluten-ut/spark32 filesystem paths that no longer exist.

ep/build-clickhouse/src/resources/bin/gluten.sh

Drop the dead if [ "$SPARK_MAJOR_MINOR_VERSION" == "3.2" ]; then GLUTEN_JARS=…/jars/spark32/* branch. SPARK_MAJOR_MINOR_VERSION cannot be 3.2 on any supported build. The remaining 3.3 branch and the else-fail path are unchanged.

docs/developers/NewToGluten.md

Rewrite the TPC-H troubleshooting failure-message example from /tmp/tpch-approved-plan/v2-bhj/spark322/5.txt (fictional subType + Spark 3.2.2) to a real path using a currently-supported version: /tmp/tpch-approved-plan/v1-bhj/spark35/5.txt. The subType() values are v1 / v1-bhj / v1-ras / v1-bhj-ras.

No functional change on any supported Spark version.

Out of scope (deferred)

Broader LICENSE hygiene unrelated to Spark 3.2 (paths using src-delta-23/src-delta-33 with hyphens while on-disk directories are src-delta23/src-delta33, plus a stale SparkWriteFilesCommitProtocol.scala path) is intentionally left to a separate PR.

How was this patch tested?

• grep -rn 'spark3\.2|shims/spark32|src-delta-20' against the touched files: 0 remaining occurrences.
• grep -rn 'spark32|spark3\.2' repo-wide (excluding target/generated/verbatim Delta-fork files and CH Spark-error-test golden data): confirms the only remaining spark32 mentions are inside upstream Delta test files and Spark's own SQL-error golden output (both DO NOT TOUCH).
• No source (.scala, .java, .cpp) files touched → no compile step needed.

Was this patch authored or co-authored using generative AI tooling?

Generated-by: Claude claude-opus-4-7

[Copilot]

Pull request overview

Cleans up remaining build-script, packaging, and documentation references to the removed Spark 3.2 shim paths/artifacts to keep the repo consistent with the supported Spark version matrix.

Changes:

• Remove Spark 3.2-related excludes/paths from packaging cleanup config and LICENSE attributions.
• Prune dead spark32 module-map entries from dev test helper scripts.
• Update ClickHouse gluten.sh version branching and refresh the TPC-H golden-plan example path in developer docs.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
package/pom.xml	Drops *spark3.2* clean-plugin exclude that no longer protects any produced artifacts.
LICENSE	Removes stale attributions for deleted shims/spark32 and src-delta-20 paths.
dev/run-scala-test.sh	Removes spark32/gluten-ut-spark32 module-map entries pointing to deleted directories.
dev/bloop-test.sh	Removes spark32/gluten-ut-spark32 module-map entries pointing to deleted directories.
ep/build-clickhouse/src/resources/bin/gluten.sh	Removes dead Spark 3.2 jar-branch; needs follow-up to align supported versions with check-env.sh.
docs/developers/NewToGluten.md	Updates TPC-H troubleshooting example paths to a currently supported Spark version.

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[LuciferYang]

Good catch. Dropped the :101 line number in 87c3513 — the source has already drifted to line 107, and keeping a specific line number in a troubleshooting example just guarantees future drift. The filename alone is enough for navigation.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 6 changed files in this pull request and generated no new comments.

[philo-he]

Looks good. Could you confirm whether the CI failures are related? Thanks.