feat: Do not parse hive partitions from user provided base directory path

[nameexhaustion]

Before:

scan_parquet("data/a=1/")
shape: (5, 3)
┌─────┬───┬─────┐
│ a   ┆ … ┆ x   │
│ --- ┆   ┆ --- │
│ i64 ┆   ┆ i32 │
╞═════╪═══╪═════╡
│ 1   ┆ … ┆ 1   │
│ 1   ┆ … ┆ 1   │
│ 1   ┆ … ┆ 1   │
│ 1   ┆ … ┆ 1   │
│ 1   ┆ … ┆ 1   │
└─────┴───┴─────┘

After:

scan_parquet("data/a=1/")
┌───┬─────┐
│ … ┆ x   │
│   ┆ --- │
│   ┆ i32 │
╞═══╪═════╡
│ … ┆ 1   │
│ … ┆ 1   │
│ … ┆ 1   │
│ … ┆ 1   │
│ … ┆ 1   │
└───┴─────┘

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.91%. Comparing base (14dd2ca) to head (67fcf94).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #17055      +/-   ##
==========================================
+ Coverage   80.90%   80.91%   +0.01%     
==========================================
  Files        1455     1455              
  Lines      190954   190961       +7     
  Branches     2723     2723              
==========================================
+ Hits       154494   154525      +31     
+ Misses      35956    35932      -24     
  Partials      504      504              

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