* Revert scalar designation for type and null values
* Revert type size estimation to defer to caller first

Bumps the go_modules group with 1 update in the /codelab directory: [github.com/golang/glog](https://github.com/golang/glog).


Updates `github.com/golang/glog` from 1.0.0 to 1.2.4
- [Release notes](https://github.com/golang/glog/releases)
- [Commits](golang/glog@v1.0.0...v1.2.4)

---
updated-dependencies:
- dependency-name: github.com/golang/glog
  dependency-type: direct:production
  dependency-group: go_modules
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* slight reordering in cost computation to preserve legacy compatibility
* Additional tests to attempt to catch ordering issues with cost estimation

* Add k8s custom policy tag handler for test
* Add copyright and remove redundant attribute from go_library target

* Fix for ContextEval with unknown attributes

* Canonical CEL environment with stdlib subsetting support

* Support for cel.Env conversion to an env.Config object
* Backed out change remove stdlib types as variables

* FromConfig option to configure CEL from an external config file
* Validation tests and cel package tests

* Support for feature flags and validators in env.Config
* Minor update to documentation

* Use remote caching for Cloud Build with Bazel

Signed-off-by: Justin King <jcking@google.com>

* Also bump machineType to E2_HIGHCPU_32

Signed-off-by: Justin King <jcking@google.com>

---------

Signed-off-by: Justin King <jcking@google.com>

* Support for splitting nested branching operators within policies
* Introduce an ast.Heights() helper
* Updated tests and expanded flattening to all calls
* Added test case for comprehension pruning during unnest

* Separate unnest optimization from composer to capture type info
* Simplify the variable tracking during unnest