Updated using `importlib_resource` instead of `pkg_resources` and prepare for later versions of `pandas`

[hrshdhgd]

Fixes #491

• [x] Updated using importlib_resource instead of pkg_resources

  • Reason: pkg_resources is going to be deprecated.

• [x] Refactor pandas related code to smoothly transition to future versions and handle deprecation warnings.

  • Pandas PR:

                         "Downcasting behavior in `replace` is deprecated and "
                         "will be removed in a future version. To retain the old "
                         "behavior, explicitly call "
                         "`result.infer_objects(copy=False)`. "
                         "To opt-in to the future "
                         "behavior, set "
                         "`pd.set_option('future.no_silent_downcasting', True)`",

  • A value is trying to be set on a copy of a slice from a DataFrame
  • .apply(max) => .apply(np.maximum.reduce)
  • UserWarning: Boolean Series key will be reindexed to match DataFrame index.

[hrshdhgd]

@matentzn : The only warning that shows now is

python3.10/site-packages/curies/api.py:261
  /opt/anaconda3/envs/sssom-py/lib/python3.10/site-packages/curies/api.py:261: PydanticDeprecatedSince20: Pydantic V1 style `@validator` validators are deprecated. You should migrate to Pydantic V2 style `@field_validator` validators, see the migration guide for more details. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.5/migration/
    @validator("uri_prefix_synonyms")  # type:ignore

which is curies related. Relevant PR: https://github.com/biopragmatics/curies/pull/101

[hrshdhgd]

Wellllcome back! My god I missed you man! Hope you are well!

Haha! All well here sir!

[hrshdhgd]

Should I merge this?