build(deps): bump github.com/Microsoft/hcsshim from 0.8.20 to 0.9.6

Bumps [github.com/Microsoft/hcsshim](https://github.com/Microsoft/hcsshim) from 0.8.20 to 0.9.6.
- [Release notes](https://github.com/Microsoft/hcsshim/releases)
- [Commits](https://github.com/Microsoft/hcsshim/compare/v0.8.20...v0.9.6)

---
updated-dependencies:
- dependency-name: github.com/Microsoft/hcsshim
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

vendor/github.com/Microsoft/hcsshim/.gitignore

@@ -1,3 +1,38 @@
+# Binaries for programs and plugins
 *.exe
-.idea
-.vscode
+*.dll
+*.so
+*.dylib
+
+# Ignore vscode setting files
+.vscode/
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
+
+# Ignore gcs bin directory
+service/bin/
+service/pkg/
+
+*.img
+*.vhd
+*.tar.gz
+
+# Make stuff
+.rootfs-done
+bin/*
+rootfs/*
+*.o
+/build/
+
+deps/*
+out/*
+
+.idea/
+.vscode/