Add support for integer types in compare function to resolve Force Value attributes issue

[fharsanto]

Features and Changes

This PR addresses the 'Force Value attributes issue' where the compare function only accepted float64 type data, limiting compatibility with integer attributes in GrowthBook. The function has been enhanced to accept int, int32, and int64 types, aligning with GrowthBook's number attribute specifications (which can be float or integer).

Changes

• Extended compare function to support int, int32, and int64 types
• Added type checking and conversion to ensure safe comparisons across these numeric types
• Enhanced error logging for type mismatches
  These updates improve flexibility and ensure the compare function fully supports all numeric attributes in GrowthBook.

Testing

Running tool: /usr/bin/go test -timeout 60s -coverprofile=/tmp/vscode-gomFKWAE/go-code-cover -run ^TestCompare$ github.com/growthbook/growthbook-golang -v

=== RUN   TestCompare
--- PASS: TestCompare (0.00s)
PASS
coverage: 2.1% of statements
ok  	github.com/growthbook/growthbook-golang	0.011s	coverage: 2.1% of statements

Screenshots

[fharsanto]

Hello @ian-ross can you check on this?

[ian-ross]

@fharsanto I no longer work for Growthbook. I'm not sure who is responsible for the Go SDK now. @jdorn might be able to suggest someone to review this.