### What changes were proposed in this pull request?
This PR fixes an issue that no tests in `hadoop-cloud` are compiled and run unless `hadoop-3.2` profile is activated explicitly.
The root cause seems similar to SPARK-36067 (#33276) so the solution is to activate `hadoop-3.2` profile in `hadoop-cloud/pom.xml` by default.
This PR introduced an empty profile for `hadoop-2.7`. Without this, building with `hadoop-2.7` fails.
### Why are the changes needed?
`hadoop-3.2` profile should be activated by default so tests in `hadoop-cloud` also should be compiled and run without activating `hadoop-3.2` profile explicitly.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Confirmed tests in `hadoop-cloud` ran with both SBT and Maven.
```
build/sbt -Phadoop-cloud "hadoop-cloud/test"
...
[info] CommitterBindingSuite:
[info] - BindingParquetOutputCommitter binds to the inner committer (258 milliseconds)
[info] - committer protocol can be serialized and deserialized (11 milliseconds)
[info] - local filesystem instantiation (3 milliseconds)
[info] - reject dynamic partitioning (1 millisecond)
[info] Run completed in 1 second, 234 milliseconds.
[info] Total number of tests run: 4
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 4, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
build/mvn -Phadoop-cloud -pl hadoop-cloud test
...
CommitterBindingSuite:
- BindingParquetOutputCommitter binds to the inner committer
- committer protocol can be serialized and deserialized
- local filesystem instantiation
- reject dynamic partitioning
Run completed in 560 milliseconds.
Total number of tests run: 4
Suites: completed 2, aborted 0
Tests: succeeded 4, failed 0, canceled 0, ignored 0, pending 0
All tests passed.
```
I also confirmed building with `-Phadoop-2.7` successfully finishes with both SBT and Maven.
```
build/sbt -Phadoop-cloud -Phadoop-2.7 "hadoop-cloud/Test/compile"
build/mvn -Phadoop-cloud -Phadoop-2.7 -pl hadoop-cloud testCompile
```
Closes#33277 from sarutak/fix-hadoop-3.2-cloud.
Authored-by: Kousuke Saruta <sarutak@oss.nttdata.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
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