vendor: mitchellh/mapstructure v1.0.0

we were only one commit behind v1.0.0, so updating to that
version; we can do a follow-up to update to the latest minor
release (v1.3.0)

full diff: mitchellh/mapstructure@f15292f...v1.0.0

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit cf543e1308698173e46bf8e46c5e280911ae7599)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: ec276f3a686f59562d1441deebd7d164217f16b7
Component: cli

Author: thaJeztah

components/cli/vendor.conf

@@ -52,7 +52,7 @@ github.com/matttproud/golang_protobuf_extensions    c12348ce28de40eed0136aa2b644
 github.com/Microsoft/go-winio                       84b4ab48a50763fe7b3abcef38e5205c12027fac
 github.com/Microsoft/hcsshim                        672e52e9209d1e53718c1b6a7d68cc9272654ab5
 github.com/miekg/pkcs11                             cb39313ec884f2cd77f4762875fe96aecf68f8e3 # v1.0.2
-github.com/mitchellh/mapstructure                   f15292f7a699fcc1a38a80977f80a046874ba8ac
+github.com/mitchellh/mapstructure                   fa473d140ef3c6adf42d6b391fe76707f1f243c8 # v1.0.0
 github.com/moby/buildkit                            ae10b292fefb00e0fbf9fecd1419c5f252e58895
 github.com/modern-go/concurrent                     bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94 # 1.0.3
 github.com/modern-go/reflect2                       4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd # 1.0.1