Update calamine requirement from 0.30 to 0.31 in /ext/parsekit

Updates the requirements on [calamine](https://github.com/tafia/calamine) to permit the latest version.
- [Release notes](https://github.com/tafia/calamine/releases)
- [Changelog](https://github.com/tafia/calamine/blob/master/Changelog.md)
- [Commits](tafia/calamine@v0.30.0...v0.31.0)

---
updated-dependencies:
- dependency-name: calamine
  dependency-version: 0.31.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

ext/parsekit/Cargo.toml

@@ -18,7 +18,7 @@ mupdf = { version = "0.5", default-features = false, features = [] }
 # OCR - Using tesseract-rs for both system and bundled modes
 tesseract-rs = "0.1"  # Tesseract with optional bundling
 image = "0.25"  # Image processing library (match rusty-tesseract's version)
-calamine = "0.30"  # Excel parsing
+calamine = "0.31"  # Excel parsing
 docx-rs = "0.4"  # Word document parsing
 quick-xml = "0.38"  # XML parsing
 zip = "5.0"  # ZIP archive handling for PPTX