Update versions

[duembgen]

• Bump poly_matrix to v0.3.1
• Remove sparseqr as core requirement, because it is only used in one function and it breaks continuous integration on other tools using cert_tools.
• Remove some dependencies that are not strictly necessary
• Restructure dependencies into environment.yml, setup.cfg (install_requires) and requirements.txt

[Copilot]

Pull Request Overview

This PR updates the package version, revises core dependencies, and removes seldom-used requirements to streamline CI.

• Bump cert_tools version to 0.0.5 and add a CHANGELOG
• Pin and reorganize dependencies in setup.cfg and environment.yml
• Remove top-level pandas/plotly imports, replace pylgmath with SciPy in tests

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
setup.cfg	Updated package version and tightened install_requires
environment.yml	Moved optional dev packages under local dev and trimmed core deps
cert_tools/hom_qcqp.py	Deferred plotly imports to function scope
cert_tools/eopt_solvers.py	Removed pandas import, added linprog import, added print warning
cert_tools/init.py	Bumped version
_test/utils.py	Replaced pylgmath.so3op.vec2rot with custom vec2rot util
CHANGELOG.md	Introduced changelog file and entry for v0.0.4