Update python-dotenv requirement from >=1.0 to >=1.2.3

[dependabot]

Updates the requirements on python-dotenv to permit the latest version.

Release notes

Sourced from python-dotenv's releases.

v1.2.3

Fixed

• Strip a leading UTF-8 BOM from .env file contents so the first variable is no longer silently lost when the file is saved with BOM (e.g. by some JetBrains IDEs on Windows) by [@​h1whelan] in #640
• set_key now escapes backslashes, so values containing them (Windows paths, regular expressions) survive a write/read round-trip. Quoted values ending in an escaped backslash are no longer mis-parsed as an escaped quote, which used to swallow the following lines by [@​dchaudhari7177] in #680
• dotenv run now prints a friendly error instead of a traceback when no command is given by [@​bbc2] in #606
• Cache the parsed result for empty .env files so repeated dotenv_values/load_dotenv calls no longer re-read the file by [@​ReinerBRO] in #638

Changelog

Sourced from python-dotenv's changelog.

[1.2.3] - 2026-08-16

Fixed

• Strip a leading UTF-8 BOM from .env file contents so the first variable is no longer silently lost when the file is saved with BOM (e.g. by some JetBrains IDEs on Windows) by [@​h1whelan] in #640
• set_key now escapes backslashes, so values containing them (Windows paths, regular expressions) survive a write/read round-trip. Quoted values ending in an escaped backslash are no longer mis-parsed as an escaped quote, which used to swallow the following lines by [@​dchaudhari7177] in #680
• dotenv run now prints a friendly error instead of a traceback when no command is given by [@​bbc2] in #606
• Cache the parsed result for empty .env files so repeated dotenv_values/load_dotenv calls no longer re-read the file by [@​ReinerBRO] in #638

[1.2.2] - 2026-03-01

Added

• Support for Python 3.14, including the free-threaded (3.14t) build. (#588)

Changed

• The dotenv run command now forwards flags directly to the specified command by [@​bbc2] in #607
• Improved documentation clarity regarding override behavior and the reference page.
• Updated PyPy support to version 3.11.
• Documentation for FIFO file support.
• Dropped Support for Python 3.9.

Fixed

• Improved set_key and unset_key behavior when interacting with symlinks by [@​bbc2] in [790c5c0]
• Corrected the license specifier and added missing Python 3.14 classifiers in package metadata by [@​JYOuyang] in #590

Breaking Changes

• dotenv.set_key and dotenv.unset_key used to follow symlinks in some situations. This is no longer the case. For that behavior to be restored in all cases, follow_symlinks=True should be used.

• In the CLI, set and unset used to follow symlinks in some situations. This is no longer the case.

• dotenv.set_key, dotenv.unset_key and the CLI commands set and unset used to reset the file mode of the modified .env file to 0o600 in some situations. This is no longer the case: The original mode of the file is now preserved. Is the file needed to be created or wasn't a regular file, mode 0o600 is used.

[1.2.1] - 2025-10-26

• Move more config to pyproject.toml, removed setup.cfg
• Add support for reading .env from FIFOs (Unix) by [@​sidharth-sudhir] in #586

[1.2.0] - 2025-10-26

... (truncated)

Commits

• 49515af Bump version: 1.2.2 → 1.2.3
• 8ac846f chore: add release runbook (RELEASING.md) and make release target
• bb31c94 docs: add 1.2.3 release notes (#606, #638, #680)
• f7b18d9 fix: round-trip backslashes through set_key (#680)
• 751f8c1 ci(deps): bump actions/checkout from 6.0.2 to 6.0.3 in the github-actions gro...
• f1937b6 chore(deps): update mkdocs-include-markdown-plugin requirement from >=6.0.0 t...
• 45b9372 chore(deps): update pytest requirement from >=3.9 to >=9.0.3 (#653)
• 72896e9 docs: fix broken mkdocs link in CONTRIBUTING.md (#636)
• 72754a1 ci(deps): bump peaceiris/actions-gh-pages from 4.0.0 to 4.1.0 in the github-a...
• 078325e ci(security): harden CI/CD supply chain with SHA pinning and least-privilege ...
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