[EAGLE-6151]: change some == to is

[zeiler]

In prep for ruff check across the repo, it flags some comparisons that should be is. Making a PR for just that first to see if it makes sense.

[Copilot]

Pull Request Overview

This PR updates several equality comparisons to use the identity operator ("is") for built‐in types in preparation for a broader ruff check. The changes affect comparisons in the method signature utilities and data type utilities to align with modern code style requirements.

• Updated type checks in clarifai/runners/utils/method_signatures.py (e.g. tuple, list comparisons).
• Modified equality comparisons in clarifai/runners/utils/data_types.py (e.g. comparing python_type with self.class, str, Text, Image, etc.).

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
clarifai/runners/utils/method_signatures.py	Replaced some equality (==) checks with identity (is) comparisons for type checks.
clarifai/runners/utils/data_types.py	Updated equality comparisons to use identity (is) for built-in type checks.

[github-actions]

Package	Line Rate	Health
clarifai	43%	❌
clarifai.cli	43%	❌
clarifai.client	71%	➖
clarifai.client.auth	74%	➖
clarifai.constants	100%	✔
clarifai.datasets	100%	✔
clarifai.datasets.export	80%	✔
clarifai.datasets.upload	75%	➖
clarifai.datasets.upload.loaders	37%	❌
clarifai.models	100%	✔
clarifai.modules	0%	❌
clarifai.rag	72%	➖
clarifai.runners	10%	❌
clarifai.runners.models	67%	➖
clarifai.runners.utils	61%	➖
clarifai.schema	100%	✔
clarifai.urls	80%	✔
clarifai.utils	74%	➖
clarifai.utils.evaluation	67%	➖
clarifai.workflows	94%	✔
Summary	66% (5861 / 8833)	➖

Minimum allowed line rate is 50%