removing `stable` and linking `stable` to `v0.3.5`.

removing `v0.3` and linking `v0.3` to `v0.3.5`.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, codecov/codecov-action@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/cache@v2, codecov/codecov-action@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/