Apache Teaclave™ TrustZone SDK v0.7.0

This release updates the project to OP-TEE 4.8.0, introduces the std feature for optee-utee to improve build-option flexibility, adds no-std support to several examples, and delivers significant Build/CI enhancements. It also improves error messages and expands the documentation.
We also welcome two new contributors, thank you for your valuable efforts! 🙌

What's Changed

🚀 Features

• examples: enable message-passing-interface-rs example for no-std and promote it to a common example (#254) by @asir66
• examples: enable serde example for no-std and promote it to a common example (#253) by @asir66
• Improve error messages on missing environment during build (#246) by @spark404
• optee-*: clippy default enforcement in CI (#235) by @DemesneGH
• optee-utee: add std feature (#232) by @DemesneGH
• examples: advanced clippy enforcement to avoid panic (#229) by @DemesneGH

📚 Examples

• examples: enable message-passing-interface-rs example for no-std and promote it to a common example (#254) by @asir66
• examples: enable serde example for no-std and promote it to a common example (#253) by @asir66

⚙️ Refactoring

• optee-utee: add std feature (#232) by @DemesneGH

🔧 Build / CI

• add the FEATURES for no-std config file and correct Dockerfile link (#252) by @asir66
• dev_docker: move OP-TEE version from image name to tag (#251) by @DemesneGH
• Update to OP-TEE 4.8.0 and add integration doc (#248) by @DemesneGH
• ci/build_qemu_image: free disk space (#247) by @DemesneGH
• ci: run test-in-optee-repo every day to detect issues earlier (#243) by @ivila
• optee-teec: disable default features for num_enum (#242) by @DemesneGH
• ci: remove env HOME from dev docker workflows (#239) by @DemesneGH
• ci: update skywalking-eyes action to v0.7.0 and add ignore rules (#238) by @asir66
• dev-docker: use customized rust toolchain path (#237) by @m4sterchain
• ci: test build on dev docker (#236) by @DemesneGH
• optee-*: clippy default enforcement in CI (#235) by @DemesneGH
• ci: enhance cleanup process in test OP-TEE workflow (#234) by @DemesneGH
• build: fix building error in OP-TEE repo (#233) by @DemesneGH
• optee-utee: add std feature (#232) by @DemesneGH
• scripts: update for release process (#231) by @DemesneGH

📦 Dependencies

• Update to OP-TEE 4.8.0 and add integration doc (#248) by @DemesneGH
• optee-teec: disable default features for num_enum (#242) by @DemesneGH

📝 Documentation

• Update to OP-TEE 4.8.0 and add integration doc (#248) by @DemesneGH
• scripts: update for release process (#231) by @DemesneGH