build: Change to ContinuousDeployment versioning

This mode apparently works like Continuous Delivery. And Mainline works
like Continuous Deployment. Version 6.0 is supposed to fix this
confusion later. Also introduce the `dev` prerelease tag.

GitVersion.yml

@@ -1,5 +1,8 @@
-mode: ContinuousDelivery
-tag-prefix: 'v'
+mode: ContinuousDeployment
 major-version-bump-message: "^(build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test)(\\([\\w\\s-]*\\))?(!:|:.*\\n\\n((.+\\n)+\\n)?BREAKING CHANGE:\\s.+)"
 minor-version-bump-message: "^(feat)(\\([\\w\\s-]*\\))?:"
 patch-version-bump-message: "^(build|chore|ci|docs|fix|perf|refactor|revert|style|test)(\\([\\w\\s-]*\\))?:"
+
+branches:
+  main:
+    tag: dev

Recyclarr.sln

@@ -13,6 +13,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Props", "Props", "{305C2AC5
 		Directory.Build.props = Directory.Build.props
 		Directory.Build.targets = Directory.Build.targets
 		Directory.Packages.props = Directory.Packages.props
+		GitVersion.yml = GitVersion.yml
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Recyclarr.Common", "src\Recyclarr.Common\Recyclarr.Common.csproj", "{18CF1FCA-7983-4423-8B7E-4A830108C624}"