Address PR comments

Author: verdie-g

src/JsonApiDotNetCore/QueryStrings/QueryStringReader.cs

@@ -40,7 +40,7 @@ public void ReadAll(DisableQueryStringAttribute? disableQueryStringAttribute)
         {
             if (parameterName.Length == 0)
             {
-                throw new InvalidQueryException("Empty query string parameter name.", null);
+                continue;
             }
 
             IQueryStringParameterReader? reader = _parameterReaders.FirstOrDefault(nextReader => nextReader.CanRead(parameterName));

test/JsonApiDotNetCoreTests/IntegrationTests/QueryStrings/QueryStringTests.cs

@@ -63,28 +63,22 @@ public async Task Can_use_unknown_query_string_parameter()
         httpResponse.ShouldHaveStatusCode(HttpStatusCode.OK);
     }
 
-    [Fact]
-    public async Task Cannot_use_empty_query_string_parameter_name()
+    [Theory]
+    [InlineData("")]
+    [InlineData("foo")]
+    public async Task Should_ignore_query_parameter_with_empty_name(string parameterValue)
     {
         // Arrange
         var options = (JsonApiOptions)_testContext.Factory.Services.GetRequiredService<IJsonApiOptions>();
         options.AllowUnknownQueryStringParameters = false;
 
-        const string route = "calendars?=";
+        string route = $"calendars?={parameterValue}";
 
         // Act
-        (HttpResponseMessage httpResponse, Document responseDocument) = await _testContext.ExecuteGetAsync<Document>(route);
+        (HttpResponseMessage httpResponse, Document _) = await _testContext.ExecuteGetAsync<Document>(route);
 
         // Assert
-        httpResponse.ShouldHaveStatusCode(HttpStatusCode.BadRequest);
-
-        responseDocument.Errors.ShouldHaveCount(1);
-
-        ErrorObject error = responseDocument.Errors[0];
-        error.StatusCode.Should().Be(HttpStatusCode.BadRequest);
-        error.Title.Should().Be("Empty query string parameter name.");
-        error.Detail.Should().BeNull();
-        error.Source.Should().BeNull();
+        httpResponse.ShouldHaveStatusCode(HttpStatusCode.OK);
     }
 
     [Theory]