vendor: bump prometheus/client_golang v1.1.0

full diff: prometheus/client_golang@v0.9.4...v1.1.0

Using v1.1.0, because version v1.2.0 and up use versioned import paths for the
github.com/cespare/xxhash/v2 dependency (prometheus/client_golang#657), which
causes vendoring with vndr to break due to the v2 in the import-path.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 34a65cb3bad3cfc626bf0b15715680ed9633e455
Component: engine

components/engine/vendor.conf

@@ -143,7 +143,10 @@ github.com/coreos/pkg                               3ac0863d7acf3bc44daf49afef89
 code.cloudfoundry.org/clock                         02e53af36e6c978af692887ed449b74026d76fec
 
 # prometheus
-github.com/prometheus/client_golang                 2641b987480bca71fb39738eb8c8b0d577cb1d76 # v0.9.4
+# Using v1.1.0, because version v1.2.0 and up use versioned import paths for the
+# github.com/cespare/xxhash/v2 dependency (prometheus/client_golang#657), which
+# causes vendoring with vndr to break due to the v2 in the import-path.
+github.com/prometheus/client_golang                 170205fb58decfd011f1550d4cfb737230d7ae4f # v1.1.0
 github.com/beorn7/perks                             37c8de3658fcb183f997c4e13e8337516ab753e6 # v1.0.1
 github.com/prometheus/client_model                  d1d2010b5beead3fa1c5f271a5cf626e40b3ad6e # v0.1.0
 github.com/prometheus/common                        287d3e634a1e550c9e463dd7e5a75a422c614505 # v0.7.0