Define and use TCX5 waiver for AsciiDoc

cr: https://code.amazon.com/reviews/CR-224677391

Author: stephswo

v2/guide/testing.adoc

@@ -6,6 +6,7 @@ include::attributes.txt[]
 [.topic]
 [#testing]
 = Test {aws} CDK applications
+:tcx5-2025-waiver: 		 	 	 
 
 // Content start
 
@@ -869,7 +870,7 @@ TypeScript::
       "{aws}::IAM::Role",
       Match.objectEquals({
         AssumeRolePolicyDocument: {
-          Version: "2012-10-17",&TCX5-2025-waiver;
+          Version: "2012-10-17",{tcx5-2025-waiver}
           Statement: [
             {
               Action: "sts:AssumeRole",
@@ -898,7 +899,7 @@ JavaScript::
       "{aws}::IAM::Role",
       Match.objectEquals({
         AssumeRolePolicyDocument: {
-          Version: "2012-10-17",&TCX5-2025-waiver;
+          Version: "2012-10-17",{tcx5-2025-waiver}
           Statement: [
             {
               Action: "sts:AssumeRole",
@@ -930,7 +931,7 @@ from aws_cdk.assertions import Match
         Match.object_equals(
             {
                 "AssumeRolePolicyDocument": {
-                    "Version": "2012-10-17",&TCX5-2025-waiver;
+                    "Version": "2012-10-17",{tcx5-2025-waiver}
                     "Statement": [
                         {
                             "Action": "sts:AssumeRole",
@@ -962,7 +963,7 @@ Java::
         // Fully assert on the state machine's IAM role with matchers.
         template.hasResourceProperties("{aws}::IAM::Role", Match.objectEquals(
                 Collections.singletonMap("AssumeRolePolicyDocument", Map.of(
-                        "Version", "2012-10-17",&TCX5-2025-waiver;
+                        "Version", "2012-10-17",{tcx5-2025-waiver}
                         "Statement", Collections.singletonList(Map.of(
                                 "Action", "sts:AssumeRole",
                                 "Effect", "Allow",
@@ -988,11 +989,11 @@ C#::
             {
                 { "AssumeRolePolicyDocument", new ObjectDict
                     {
-                        { "Version", "2012-10-17"&TCX5-2025-waiver; },
+                        { "Version", "2012-10-17"{tcx5-2025-waiver} },
                         { "Action", "sts:AssumeRole" },
                         { "Principal", new ObjectDict
                             {
-                                { "Version", "2012-10-17"&TCX5-2025-waiver; },
+                                { "Version", "2012-10-17"{tcx5-2025-waiver} },
                                 { "Statement", new object[]
                                     {
                                         new ObjectDict {