fix: regex patterns for dependency version handling in TOML

[mdqst]

Description

fixed regex patterns in read_dependency_version and write_dependency_version to properly handle TOML syntax.

• removed extra quotes around dependency_name
• added re.escape
• accounted for = "..." format
• updated replacement to dependency_name = "{min_version},{max_version}"

now both functions correctly parse and write dependencies in TOML.

Tests

verified on sample TOML files that dependencies are now read and written correctly.

Checklist

A couple of things to include in your PR for completeness:

• Added documentation to all relevant README.md files
• Added a changelog entry

[cb-heimdall]

🟡 Heimdall Review Status

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