Ran go fix on this codebase

[thomasvn]

Apply go fix modernizations (Go 1.26)

Ran go fix ./... to apply automated source-level rewrites suggested by the Go 1.26 toolchain. No logic changes; all fixes are mechanical and semantically equivalent to the code they replace.

go fix ./...
go build ./...   # verified clean

Changes by analyzer

Analyzer	Rule	Files
any	interface{} → any	cldy/clients.go, pkg/cluster/dynamic.go, pkg/env/unifiedagentenv.go
reflecttypefor	reflect.TypeOf(T{}) → reflect.TypeFor[T]()	pkg/cluster/dynamic.go
rangeint	index-only for loops → for range N	pkg/cluster/dynamic.go, pkg/nodes/request.go, kubecost/adapters/metricsquerier_test.go
newexpr	aws.String(x) / aws.Int(n) → new(x) / new(n)	cldy/clients.go

any — idiomatic alias for interface{}

any has been the preferred alias since Go 1.18.

reflect.TypeFor[T]() — type-safe, allocation-free

reflect.TypeOf(T{}) allocates a zero-value struct to extract its type. reflect.TypeFor[T]() (Go 1.22) resolves the type at compile time and works correctly for interface types, where the old idiom required the cumbersome reflect.TypeOf((*T)(nil)).Elem().

for range N — cleaner iteration

for i := 0; i < n; i++ → for i := range n. Where the index variable is unused entirely, the loop becomes for range n.

new(expr) — replaces pointer-helper functions

Go 1.26 extended new to accept an expression: new(expr) allocates a copy of expr and returns its address. This replaces the aws.String / aws.Int helper-function pattern that was necessary before this language change.

// before
Region:     aws.String(s3Region),
MaxRetries: aws.Int(3),

// after
Region:     new(s3Region),
MaxRetries: new(3),