[TF-M] TF-M v1.5.0 release started

Hello,

Let me inform you that release branch "release/1.5.0" is created and tagged with TF-Mv1.5.0-RC1 in these repositories:

1. tf-m-testshttps://git.trustedfirmware.org/TF-M/tf-m-tests.git/ 2. trusted-firmware-mhttps://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ 3. tf-m-ci-scriptshttps://git.trustedfirmware.org/ci/tf-m-ci-scripts.git/ 4. tf-m-job-configshttps://git.trustedfirmware.org/ci/tf-m-job-configs.git/ Normal development can be continued in the main branch as described in the updated release process https://tf-m-user-guide.trustedfirmware.org/docs/releases/release_process.ht...

Thanks and good luck, Anton