Bump patch version to 20.2.6 (#3109)

* Initial plan

* Bump patch version from 20.2.5 to 20.2.6

Co-authored-by: kblok <2198466+kblok@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: kblok <2198466+kblok@users.noreply.github.com>

Author: Copilot

lib/PuppeteerSharp/PuppeteerSharp.csproj

@@ -12,10 +12,10 @@
     <Description>Headless Browser .NET API</Description>
     <PackageId>PuppeteerSharp</PackageId>
     <PackageReleaseNotes></PackageReleaseNotes>
-    <PackageVersion>20.2.5</PackageVersion>
-    <ReleaseVersion>20.2.5</ReleaseVersion>
-    <AssemblyVersion>20.2.5</AssemblyVersion>
-    <FileVersion>20.2.5</FileVersion>
+    <PackageVersion>20.2.6</PackageVersion>
+    <ReleaseVersion>20.2.6</ReleaseVersion>
+    <AssemblyVersion>20.2.6</AssemblyVersion>
+    <FileVersion>20.2.6</FileVersion>
     <SynchReleaseVersion>false</SynchReleaseVersion>
     <StyleCopTreatErrorsAsWarnings>false</StyleCopTreatErrorsAsWarnings>
     <DebugType>embedded</DebugType>