fix(deps): update module github.com/crossplane/crossplane-runtime to v1.20.0

Author: renovate[bot]

go.mod

@@ -6,7 +6,7 @@ toolchain go1.21.3
 
 require (
 	github.com/alecthomas/kong v0.9.0
-	github.com/crossplane/crossplane-runtime v1.14.4
+	github.com/crossplane/crossplane-runtime v1.20.0
 	github.com/crossplane/function-sdk-go v0.1.0
 	github.com/google/go-cmp v0.7.0
 	google.golang.org/protobuf v1.32.0