Bump LibGit2Sharp from 0.26.0 to 0.26.1

Bumps [LibGit2Sharp](https://github.com/libgit2/libgit2sharp) from 0.26.0 to 0.26.1.
- [Release notes](https://github.com/libgit2/libgit2sharp/releases)
- [Changelog](https://github.com/libgit2/libgit2sharp/blob/master/CHANGES.md)
- [Commits](libgit2/libgit2sharp@v0.26...v0.26.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

src/Directory.Build.props

@@ -14,7 +14,7 @@
 
  </PropertyGroup>
  <PropertyGroup>
-    <PackageVersion_LibGit2Sharp>0.26.0</PackageVersion_LibGit2Sharp>    
+    <PackageVersion_LibGit2Sharp>0.26.1</PackageVersion_LibGit2Sharp>    
     <PackageVersion_JetBrainsAnnotations>2019.1.3</PackageVersion_JetBrainsAnnotations>
     <PackageVersion_YamlDotNet>6.1.2</PackageVersion_YamlDotNet>
  </PropertyGroup>