fix(deps): update module github.com/google/cel-go to v0.28.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/google/cel-go	v0.27.0 → v0.28.0

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Release Notes

google/cel-go (github.com/google/cel-go)

v0.28.0

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High-Level Changes

• Enhanced JSON Interoperability: New support for JSON names across the checker, AST, and runtime allows for more seamless data handling when working with JSON-native structures.
• Improved Developer Tooling: Integration is now smoother thanks to new utilities for converting Go errors into cel.Issues and more descriptive, context-aware error messages.
• Greater Environment Flexibility: You can now redeclare variables as constants and export parse limit options, providing finer control over how CEL environments are configured and constrained.
• Native Struct Improvements: Support for mixing CEL and native values within native structs simplifies the handling of complex, hybrid data types.

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🚀 Features

• Add helper method to check whether a function has a singleton binding in #​1266
• Helper utility for converting a Go error into cel.Issues in #​1267
• Policy API improvements in #​1268
• CEL Test usability requirements in #​1269
• Better context-related error messages in #​1271
• Sort env.Config values where reasonable in #​1273
• Support redeclaring variables as constants in NewEnv in #​1275
• Add support for exporting parse limit options in #​1277
• Support mixing CEL values and native values in native structs in #​1270
• Add checker, AST, and type-provider support for JSON names in #​1283
• JSON field names runtime support in #​1286
• Optionally include reachable fieldpaths in prompt in #​1285
• REPL -- cel-spec pb2 and json name support #​1294

🐞 Bug Fixes

• Fix support for config-based type references in #​1265
• Check arg kinds in optional.or and .orValue impl in #​1276
• Bazel fixes for import in #​1278
• Support zero-value literals in presence test inlining #​1280
• Cache concatList.Size() to prevent O(N^2) evaluation time #​1291
• Preserve runtime error node IDs from Resolve #​1290
• Default enable identifier escaping with backticks #​1295
• Cap format string precision to prevent memory exhaustion #​1292

🛠️ Maintenance & Internal

• chore: Migrate gsutil usage to gcloud storage in #​1274
• Lint fixes for exported function/type comments in #​1279
• Lint fixes for import in #​1287

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Full Changelog: https://github.com/google/cel-go/compare/v0.27.0...v0.28.0-alpha

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