Bump cel-go to v0.17.6

vendor/github.com/google/cel-go/ext/BUILD.bazel

@@ -9,6 +9,7 @@ go_library(
     srcs = [
         "encoders.go",
         "guards.go",
+        "lists.go",
         "math.go",
         "native.go",
         "protos.go",
@@ -20,7 +21,6 @@ go_library(
     deps = [
         "//cel:go_default_library",
         "//checker/decls:go_default_library",
-        "//common:go_default_library",
         "//common/overloads:go_default_library",
         "//common/types:go_default_library",
         "//common/types/pb:go_default_library",
@@ -41,6 +41,7 @@ go_test(
     size = "small",
     srcs = [
         "encoders_test.go",
+        "lists_test.go",
         "math_test.go",
         "native_test.go",
         "protos_test.go",
@@ -53,7 +54,6 @@ go_test(
     deps = [
         "//cel:go_default_library",
         "//checker:go_default_library",
-        "//common:go_default_library",
         "//common/types:go_default_library",
         "//common/types/ref:go_default_library",
         "//common/types/traits:go_default_library",