fix: eliminate deprecation warnings with hugo version 0.156.0 (#702)

* Fix deprecation warning with latest hugo version 0.156.0

* fix: use `hugo.Data` to replace the discarded `.Site.Data`

* chore(hugo): update Hugo version requirements to 0.156.0

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Co-authored-by: Cell <1024@lruihao.cn>

apps/test/content/posts/file-tree-test/index.md

@@ -115,7 +115,7 @@ Trying the file not found case (should fallback to next mode):
 
 {{< file-tree file="data/nonexistent.yaml" data="example" />}}
 
-### Site data
+### Hugo data
 
 #### Basic usage