Fix broken Docker container tag

Author: k7hpn

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
+## [4.1] - 2023-03-13
+
+### Fixed
+
+- Fix invalid Docker container tag
+
 ## [4] - 2023-03-13
 
 ### Updated
@@ -28,6 +34,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
 - GitHub Action for using dotnet outdated
 
+[4.1]: https://github.com/MCLD/dotnet-outdated-action/tree/v4.1
 [4]: https://github.com/MCLD/dotnet-outdated-action/tree/v4
 [3]: https://github.com/MCLD/dotnet-outdated-action/tree/v3
 [2]: https://github.com/MCLD/dotnet-outdated-action/tree/v2

Dockerfile

@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:8
+FROM mcr.microsoft.com/dotnet/sdk:8.0
 
 RUN dotnet tool install --global dotnet-outdated-tool
 

README.md

@@ -19,12 +19,12 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: mcld/dotnet-outdated-action@v4
+      - uses: mcld/dotnet-outdated-action@v4.1
 ```
 
 ## Version History
 
-- v4: .NET Core 8
+- v4.1: .NET Core 8
 - v3: .NET Core 7
 - v2: .NET Core 6
 - v1: .NET Core 5