feat: add 313 testing and upgrade pydantic

[jamescalam]

PR Type

Adds Python 3.13 support and tests. Also includes pydantic updates. Closes #452

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Description

• Updated Python version to 3.13 across various workflow configurations and files.
• Updated Poetry version to 1.8.4 in workflows.
• Added Python 3.13 to the testing matrix.
• Updated the default Python version in pre-commit configuration.
• Updated the Python version range in pyproject.toml and added a constraint for the fastembed dependency.
• Updated the copyright year in the LICENSE file.

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Changes walkthrough 📝

	Relevant files
Configuration changes	9 files docs.yml Update Python and Poetry versions in docs workflow              .github/workflows/docs.yml Updated Python version from 3.11 to 3.13. Updated Poetry version from 1.8.3 to 1.8.4. +2/-2      lint.yml Update Python and Poetry versions in lint workflow              .github/workflows/lint.yml Updated Python version from 3.11 to 3.13. Updated Poetry version from 1.5.1 to 1.8.4. +2/-2      release.yml Update Python and Poetry versions in release workflow        .github/workflows/release.yml Updated Python version from 3.11 to 3.13. Updated Poetry version from 1.5.1 to 1.8.4. +3/-3      test.yml Add Python 3.13 to test matrix and update Poetry                  .github/workflows/test.yml Added Python 3.13 to the testing matrix. Updated Poetry version from 1.5.1 to 1.8.4. +2/-1      .pre-commit-config.yaml Update default Python version in pre-commit config              .pre-commit-config.yaml Changed default Python version to 3.13. +1/-1      .python-version Update Python version file                                                              .python-version Updated Python version from 3.11 to 3.13. +1/-1      .readthedocs.yaml Update Python version in Read the Docs config                        .readthedocs.yaml Updated Python version from 3.12 to 3.13. +1/-1      Makefile Update target Python version in Makefile                                  Makefile Updated target Python version to 3.13 for formatting and linting. +2/-2      pyproject.toml Update Python version range and dependencies                          pyproject.toml Updated Python version range to include 3.13. Added Python version constraint for fastembed dependency. +2/-2
Miscellaneous	1 files LICENSE Update copyright year                                                                        LICENSE Updated copyright year to 2024. +1/-1

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[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ No major issues detected

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[codecov]

Codecov Report

Attention: Patch coverage is 89.70588% with 7 lines in your changes missing coverage. Please review.

Project coverage is 73.47%. Comparing base (ff2c3ca) to head (fb1544d).
Report is 15 commits behind head on main.

Files with missing lines	Patch %	Lines
semantic_router/encoders/clip.py	33.33%	2 Missing ⚠️
semantic_router/index/postgres.py	0.00%	2 Missing ⚠️
semantic_router/llms/openai.py	77.77%	2 Missing ⚠️
semantic_router/encoders/huggingface.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #472      +/-   ##
==========================================
- Coverage   73.61%   73.47%   -0.15%     
==========================================
  Files          43       43              
  Lines        3548     3540       -8     
==========================================
- Hits         2612     2601      -11     
- Misses        936      939       +3     

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