Improve submodule handling for non-git builds (#87)

- Add support for manual submodule cloning when .git directory is unavailable
- Separate git repository logic from build environment logic
- Extract submodule URL from .gitmodules and clone valkey-glide repository during configure phase
- Ensure protobuf file generation works in both git and non-git build scenarios
- Improve robustness of build process for packaged distributions

Signed-off-by: affonsov <67347924+affonsov@users.noreply.github.com>

Improve submodule handling for non-git builds (#87)

- Add support for manual submodule cloning when .git directory is unavailable
- Separate git repository logic from build environment logic
- Extract submodule URL from .gitmodules and clone valkey-glide repository during configure phase
- Ensure protobuf file generation works in both git and non-git build scenarios
- Improve robustness of build process for packaged distributions

Signed-off-by: affonsov <67347924+affonsov@users.noreply.github.com>

Update ValkeyGlidePHP package.xml version to 0.10.0 (#86)

* Update ValkeyGlidePHP package.xml version to 0.10.0

- Update release version from 0.9.0 to 0.10.0
- Update API version from 0.9.0 to 0.10.0
- Update release date to 2025-11-27
- Add new features to release notes: OpenTelemetry support, logging capabilities, IAM authentication, refresh topology configuration, and multi-database support for cluster mode
- Add changelog entry for version 0.10.0 with complete feature list
- Reflect latest improvements and features added in recent releases

Signed-off-by: affonsov <67347924+affonsov@users.noreply.github.com>

* update changelog.md with the 0.10.0 version

Signed-off-by: affonsov <67347924+affonsov@users.noreply.github.com>

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Signed-off-by: affonsov <67347924+affonsov@users.noreply.github.com>

PHP: Add OTEL support (#72)

* PHP: Add OTEL support

Signed-off-by: Prateek Kumar <prateek.kumar@improving.com>

PHP Preview RC1