Server dependency updates (#969)

* Update server dependancy.

* Do 1.16 because build image is stuck there.

* Go mod tidy.

* Fix plugin api.

* Change to v0.7.0 for convinance. (value is ignored by go mod)

go.mod

@@ -1,10 +1,19 @@
 module github.com/mattermost/mattermost-plugin-playbooks
 
-go 1.14
+go 1.16
+
+replace github.com/mattermost/mattermost-plugin-playbooks/client => ./client
+
+replace github.com/HdrHistogram/hdrhistogram-go => github.com/codahale/hdrhistogram v1.1.2
+
+replace github.com/golang/mock => github.com/golang/mock v1.4.4
+
+replace github.com/mattermost/mattermost-server/v6 => github.com/mattermost/mattermost-server/v6 v6.0.0-20220107143254-93a9c6c2931f
+
+replace github.com/mattermost/mattermost-plugin-api => github.com/mattermost/mattermost-plugin-api v0.0.22-0.20211207232216-3faec618d311
 
 require (
-	github.com/BurntSushi/toml v0.4.1 // indirect
-	github.com/Masterminds/squirrel v1.5.1
+	github.com/Masterminds/squirrel v1.5.2
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/go-sql-driver/mysql v1.6.0
 	github.com/golang/mock v1.6.0
@@ -15,14 +24,8 @@ require (
 	github.com/mattermost/mattermost-plugin-playbooks/client v0.7.0
 	github.com/mattermost/mattermost-server/v6 v6.0.0-20211207185652-92e80bd4ed31
 	github.com/pkg/errors v0.9.1
-	github.com/rudderlabs/analytics-go v3.3.1+incompatible
+	github.com/rudderlabs/analytics-go v3.3.2+incompatible
 	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.7.0
 	github.com/writeas/go-strip-markdown v2.0.1+incompatible
 )
-
-replace github.com/mattermost/mattermost-plugin-playbooks/client => ./client
-
-replace github.com/HdrHistogram/hdrhistogram-go => github.com/codahale/hdrhistogram v1.1.2
-
-replace github.com/golang/mock v1.6.0 => github.com/golang/mock v1.4.4