[windows-1809] Bump vcpkg

windows-1809/base/Dockerfile

@@ -48,7 +48,7 @@ RUN [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tl
 RUN $vcpkg_dir = 'C:/ProgramData/vcpkg'; \
     git clone -b robofish --single-branch https://git.imp.fu-berlin.de/bioroboticslab/robofish/vcpkg.git; \
     cd $vcpkg_dir; \
-    git checkout d61d47c5cac2198bf0262d75742e8a4a38e573d6; \
+    git checkout c6f4350fcbec06f8b9f2c22daeb9c651c9e28605; \
     ./scripts/bootstrap.ps1 -disableMetrics; \
     $vcpkg_target_triplet = 'x64-windows-14.16'; \
     [Environment]::SetEnvironmentVariable('VCPKG_DIR', "\"$vcpkg_dir\"", [EnvironmentVariableTarget]::Machine); \