Update version for 3.0.4

doc/MailTemplate.Announce.txt

@@ -1,10 +1,10 @@
 To: announce@apache.org, dev@logging.apache.org
-Subject: [ANNOUNCE] Apache log4net 3.0.3 released
+Subject: [ANNOUNCE] Apache log4net 3.0.4 released
 
 Hi,
 
-the Apache log4net team is pleased to announce the 3.0.3 release.
+the Apache log4net team is pleased to announce the 3.0.4 release.
 For further information (support, download, etc.) see
 - https://logging.apache.org/log4net/release/release-notes.html
-- https://github.com/apache/logging-log4net/releases/tag/rel%2F3.0.3
-- https://www.nuget.org/packages/log4net/3.0.3
+- https://github.com/apache/logging-log4net/releases/tag/rel%2F3.0.4
+- https://www.nuget.org/packages/log4net/3.0.4

doc/MailTemplate.Result.txt

@@ -1,5 +1,5 @@
 To: dev@logging.apache.org
-Subject: [RESULT][VOTE] Release Apache Log4net 3.0.3
+Subject: [RESULT][VOTE] Release Apache Log4net 3.0.4
 
 and here is my +1.
 
@@ -9,6 +9,6 @@ I will continue the release process.
 Jan
 
 ---------------------------------------------------------------------------------------------------
-This is a vote to release the Apache Log4net 3.0.3.
+This is a vote to release the Apache Log4net 3.0.4.
 
 ...

doc/MailTemplate.txt

@@ -1,12 +1,12 @@
 To: dev@logging.apache.org
-Subject: [VOTE] Release Apache Log4net 3.0.3
+Subject: [VOTE] Release Apache Log4net 3.0.4
 
-This is a vote to release the Apache Log4net 3.0.3.
+This is a vote to release the Apache Log4net 3.0.4.
 
 Website: https://logging.staged.apache.org/log4net/release/release-notes.html
 GitHub: https://github.com/apache/logging-log4net
 Commit: <todo insert>
-Distribution: https://dist.apache.org/repos/dist/dev/logging/log4net/3.0.3
+Distribution: https://dist.apache.org/repos/dist/dev/logging/log4net/3.0.4
 Signing key: 0x7D24496A230E29D6349A99EF583E491578F02D5D
 Review kit: https://logging.apache.org/log4net/release/release-review-instructions.html
 

examples/Directory.Build.props

@@ -26,7 +26,7 @@
     <Optimize>true</Optimize>
   </PropertyGroup>
   <PropertyGroup>
-    <Log4NetPackageVersion>3.0.3-preview.1</Log4NetPackageVersion>
+    <Log4NetPackageVersion>3.0.3</Log4NetPackageVersion>
     <MicrosoftNetAnalyzersPackageVersion>8.0.0</MicrosoftNetAnalyzersPackageVersion>
   </PropertyGroup>
   <PropertyGroup Label="GenerateAssemblyInfo">

package.json

@@ -1,6 +1,6 @@
 {
   "name": "log4net",
-  "version": "3.0.3",
+  "version": "3.0.4",
   "description": "Log4Net is a logging framework for .NET",
   "scripts": {
     "test": "run-s clean-build test-dotnet run-dotnet-core-tests",

pom.xml

@@ -21,7 +21,7 @@
   <groupId>log4net</groupId>
   <artifactId>apache-log4net</artifactId>
   <packaging>pom</packaging>
-  <version>3.0.3</version>
+  <version>3.0.4</version>
   <name>Apache log4net</name>
   <description>Logging framework for Microsoft .NET Framework.</description>
   <url>https://logging.apache.org/log4net/</url>

src/log4net/log4net.csproj

@@ -1,6 +1,6 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>3.0.3</Version>
+    <Version>3.0.4</Version>
     <PackageId>log4net</PackageId>
     <Product>Apache log4net</Product>
     <Title>$(Product)</Title>
@@ -100,7 +100,7 @@ log4net is designed with two distinct goals in mind: speed and flexibility
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="$(MicrosoftSourceLinkGitHubPackageVersion)" PrivateAssets="All" />
-    <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="$(MicrosoftNetAnalyzersPackageVersion)" PrivateAssets="All" IncludeAssets="All"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="$(MicrosoftNetAnalyzersPackageVersion)" PrivateAssets="All" IncludeAssets="All" />
   </ItemGroup>
   <Import Project="../MonoForFramework.targets" />
   <Target Name="_ResolveCopyLocalNuGetPackagePdbsAndXml" Condition="$(CopyLocalLockFileAssemblies) == true" AfterTargets="ResolveReferences">