Update go.mod for policy and repl (#1054)

Author: TristonianJones

policy/go.mod

@@ -9,6 +9,7 @@ require (
 )
 
 require (
+	cel.dev/expr v0.18.0 // indirect
 	github.com/antlr4-go/antlr/v4 v4.13.1 // indirect
 	github.com/stoewer/go-strcase v1.3.0 // indirect
 	golang.org/x/exp v0.0.0-20240823005443-9b4947da3948 // indirect

policy/go.sum

@@ -1,3 +1,5 @@
+cel.dev/expr v0.18.0 h1:CJ6drgk+Hf96lkLikr4rFf19WrU0BOWEihyZnI2TAzo=
+cel.dev/expr v0.18.0/go.mod h1:MrpN08Q+lEBs+bGYdLxxHkZoUSsCp0nSKTs0nTymJgw=
 github.com/antlr4-go/antlr/v4 v4.13.1 h1:SqQKkuVZ+zWkMMNkjy5FZe5mr5WURWnlpmOuzYWrPrQ=
 github.com/antlr4-go/antlr/v4 v4.13.1/go.mod h1:GKmUxMtwp6ZgGwZSva4eWPC5mS6vUAmOABFgjdkM7Nw=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=

repl/go.mod

@@ -3,7 +3,7 @@ module github.com/google/cel-go/repl
 go 1.21.1
 
 require (
-	cel.dev/expr v0.17.0
+	cel.dev/expr v0.18.0
 	github.com/antlr4-go/antlr/v4 v4.13.0
 	github.com/chzyer/readline v1.5.1
 	github.com/google/cel-go v0.0.0-00010101000000-000000000000