Resolve the comments

Author: xuzhg

src/Microsoft.OpenApi.Readers/ParseNodes/OpenApiAnyConverter.cs

@@ -200,7 +200,7 @@ public static IOpenApiAny GetSpecificOpenApiAny(IOpenApiAny openApiAny, OpenApiS
                 {
                     return new OpenApiByte(Convert.FromBase64String(value));
                 }
-                catch(Exception)
+                catch(FormatException)
                 { }
             }
 
@@ -211,7 +211,7 @@ public static IOpenApiAny GetSpecificOpenApiAny(IOpenApiAny openApiAny, OpenApiS
                 {
                     return new OpenApiBinary(Encoding.UTF8.GetBytes(value));
                 }
-                catch(Exception)
+                catch(EncoderFallbackException)
                 { }
             }
 

test/Microsoft.OpenApi.Tests/Models/OpenApiExampleTests.cs

@@ -3,6 +3,7 @@
 
 using System.Globalization;
 using System.IO;
+using System.Text;
 using FluentAssertions;
 using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Models;
@@ -32,7 +33,7 @@ public class OpenApiExampleTests
                                 ["href"] = new OpenApiString("http://example.com/1"),
                                 ["rel"] = new OpenApiString("sampleRel1"),
                                 ["bytes"] = new OpenApiByte(new byte[] { 1, 2, 3 }),
-                                ["binary"] = new OpenApiBinary(new byte[] { 41, 42, 43 })
+                                ["binary"] = new OpenApiBinary(Encoding.UTF8.GetBytes("Ñ😻😑♮Í☛oƞ♑😲☇éNjžŁ♻😟¥a´Ī♃ƠąøƩ"))
                             }
                         }
                     },
@@ -121,7 +122,7 @@ public void SerializeAdvancedExampleAsV3JsonWorks()
             ""href"": ""http://example.com/1"",
             ""rel"": ""sampleRel1"",
             ""bytes"": ""AQID"",
-            ""binary"": "")*+""
+            ""binary"": ""Ñ😻😑♮Í☛oƞ♑😲☇éNjžŁ♻😟¥a´Ī♃ƠąøƩ""
           }
         ]
       },