Bump FSBuildVersion to 101

FSharp.Core 11.0.100 and FSharp.Compiler.Service 43.12.100 are already
published on NuGet, causing Check_Published_Package_Versions CI checks
to fail. Bump to 101 to match other active PRs targeting main.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: T-Gro

eng/Versions.props

@@ -19,7 +19,7 @@
     <!-- F# Version components -->
     <FSMajorVersion>11</FSMajorVersion>
     <FSMinorVersion>0</FSMinorVersion>
-    <FSBuildVersion>100</FSBuildVersion>
+    <FSBuildVersion>101</FSBuildVersion>
     <FSRevisionVersion>0</FSRevisionVersion>
     <!-- -->
     <!-- F# Language version -->