Use gh-actions docker hash

Version bump for release

Update exception handling

chore(release): bump version to 3.1.0b0 in setup.py (#156)

fix(ci): update pypi publish action to release/v1 (#155)

chore(release): bump version to 3.1.0b0 in setup.py (#156)

Prepare for v3.0.0b1 release (#151)

Set version tag to v3.0.0b1 for beta release

Fix test breakage: dictionary changed size during iteration (#149)

feat(images): implement authenticated gRPC redirection for Images API (…

…#146)

* feat(images): implement authenticated gRPC redirection for Images API

- Intercept `execute_transforms`, `histogram`, and `composite` calls in the SDK.
- Redirect these calls to a custom, self-hosted gRPC service defined by `IMAGES_SERVICE_ENDPOINT`.
- Implement secure service-to-service authentication using OIDC tokens (via `google.auth` and `grpc.access_token_call_credentials`).
- Support native Google Cloud Storage (GCS) integration by passing raw `/gs/` paths to the external service, bypassing legacy BlobKey encoding.
- Implement fallback logic for legacy BlobKeys: automatically fetch blob content locally and send raw bytes to the external service when a direct reference cannot be resolved.
- Increase gRPC max receive message size to 32MB to support high-resolution image processing.
- Refactor internal logic to share authentication and channel creation code across all API methods.

* ci: Add fail-fast: false to matrix strategy

This will ensure that the workflow continues to run for all Python versions even if one of them fails.

* ci: Remove deprecated Python 3.7 and 3.8 from matrix

These runtimes are deprecated as per the support schedule:

https://docs.cloud.google.com/appengine/docs/standard/lifecycle/support-schedule#python

Release version 2.0.0 with mail changes (smtp) (#144)

* feat: mail via smtp & few unit tests

* tests: add more unit tests for send mail smtp path

* test: Add comprehensive tests for SMTP mail sending

* feat: Handle admin emails and add more tests

* feat: Add final error handling tests for SMTP

This commit adds the remaining error handling tests for the SMTP mail sending functionality.

- Adds a test to ensure `MissingRecipientsError` is raised when no recipients are provided for an admin email.
- Adds a test to ensure `InvalidSenderError` is raised for SMTP authentication errors.
- Adds a test to ensure a generic `Error` is raised for SMTP connection errors and missing `SMTP_HOST` configuration.
- Corrects the exception type raised in the `send()` method to use the base `Error` class for transient SMTP errors.

* Refactor: Prefix SMTP environment variables with APPENGINE_

This change prefixes all environment variables related to the external SMTP mail service with `APPENGINE_` to improve namespacing and prevent potential conflicts in the deployment environment.

The following variables have been renamed:
- USE_SMTP_MAIL_SERVICE -> APPENGINE_USE_SMTP_MAIL_SERVICE
- SMTP_HOST -> APPENGINE_SMTP_HOST
- SMTP_PORT -> APPENGINE_SMTP_PORT
- SMTP_USER -> APPENGINE_SMTP_USER
- SMTP_PASSWORD -> APPENGINE_SMTP_PASSWORD
- SMTP_USE_TLS -> APPENGINE_SMTP_USE_TLS
- ADMIN_EMAIL_RECIPIENTS -> APPENGINE_ADMIN_EMAIL_RECIPIENTS

The changes have been applied to both the SDK implementation in `mail.py` and the corresponding unit tests in `mail_unittest.py

* Update version to 1.2.0-beta to test mail api changes

* Bump version to 2.0.0

* chore: Remove .coverage from git and add to .gitignore

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Co-authored-by: YashBanka <yashbanka@google.com>