chore: makes regex internal

Signed-off-by: Vincent Biret <[email protected]>

Author: baywet

src/Microsoft.OpenApi/Validations/Rules/OpenApiComponentsRules.cs

@@ -17,7 +17,7 @@ public static class OpenApiComponentsRules
         /// <summary>
         /// The key regex.
         /// </summary>
-        public static readonly Regex KeyRegex = new(@"^[a-zA-Z0-9\.\-_]+$");
+        internal static readonly Regex KeyRegex = new(@"^[a-zA-Z0-9\.\-_]+$");
 
         /// <summary>
         /// All the fixed fields declared above are objects

test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt

@@ -1671,7 +1671,6 @@ namespace Microsoft.OpenApi.Validations.Rules
     [Microsoft.OpenApi.Validations.Rules.OpenApiRule]
     public static class OpenApiComponentsRules
     {
-        public static readonly System.Text.RegularExpressions.Regex KeyRegex;
         public static Microsoft.OpenApi.Validations.ValidationRule<Microsoft.OpenApi.Models.OpenApiComponents> KeyMustBeRegularExpression { get; }
     }
     [Microsoft.OpenApi.Validations.Rules.OpenApiRule]