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ARROW-17856: [CI][Archery] Add new Archery command to delete old branches and tags on crossbow repo (#14248)

I have tested the script locally like:
```
$ archery crossbow delete-old-branches --days 600
Total number of references to delete: 342
```

Before running there were on the remote repository:
```
52,188 branches
50,866 tags
```
After running we have:
```
52,059 branches
50,768 tags
```

Authored-by: Raúl Cumplido <raulcumplido@gmail.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>