test: One liner to skip read_table_version_hdfs (delta-io#1428)

## What changes are proposed in this pull request?

This PR adds an \`#[ignore]\` attribute to the
\`read_table_version_hdfs\` test to skip it when the Maven executable is
not available on the system.

**Problem:**
The HDFS integration test was failing in environments where Maven is not
installed:
```
cargo test --all-features
```


```
thread 'read_table_version_hdfs' panicked at
/Users/sanuj.basu/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/
hdfs-native-0.12.3/src/minidfs.rs:59:37:
Failed to find mvn executable: CannotFindBinaryPath
```

**Solution:**
Added the \`#[ignore = \"Skipping HDFS integration test\"]\` attribute
to the \`read_table_version_hdfs\` test function. This allows the test
to be skipped by default while still being available to run explicitly
when needed.

## How was this change tested?

Verified that the test is properly skipped:
```
running 1 test
test read_table_version_hdfs ... ignored, Skipping HDFS integration test

test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
```

The test can still be run explicitly with:
```bash
cargo test --features integration-test --test hdfs -- --include-ignored
```

Author: sanujbasu

README.md

@@ -153,15 +153,7 @@ Some design principles which should be considered:
 - If using `emacs`, both [eglot](https://github.com/joaotavora/eglot) and
   [lsp-mode](https://github.com/emacs-lsp/lsp-mode) provide excellent integration with
   `rust-analyzer`. [rustic](https://github.com/brotzeit/rustic) is a nice mode as well.
-- When also developing in VS Code it's sometimes convenient to configure rust-analyzer in
-  `.vscode/settings.json`.
-
-```json
-{
-  "editor.formatOnSave": true,
-  "rust-analyzer.cargo.features": ["default-engine"]
-}
-```
+- When also developing in VS Code it's convenient to add rust-analyzer to your workspace.
 
 - The crate's documentation can be easily reviewed with: `cargo docs --open`
 - Code coverage is available on codecov via [cargo-llvm-cov]. See their docs for instructions to install/run locally.

kernel/tests/hdfs.rs

@@ -52,6 +52,7 @@ async fn write_local_path_to_hdfs(
 }
 
 #[tokio::test]
+#[ignore = "Skipping HDFS integration test"]
 async fn read_table_version_hdfs() -> Result<(), Box<dyn std::error::Error>> {
     let minidfs = MiniDfs::with_features(&HashSet::new());
     let hdfs_client = Client::default();