Update go dependencies

vendor/github.com/Azure/go-autorest/.travis.yml

@@ -3,31 +3,32 @@ sudo: false
 language: go
 
 go:
-  - master
-  - 1.11.x
   - 1.10.x
-
-matrix:
-  allow_failures:
-    - go: master
+  - 1.11.x
+  - 1.12.x
 
 env:
-  - DEP_VERSION="0.5.0"
+  global:
+    - DEP_RELEASE_TAG=v0.5.1 # so the script knows which version to use
+    - GOSEC_RELEASE_TAG=1.3.0
 
 before_install:
-  - curl -L -o $GOPATH/bin/dep https://github.com/golang/dep/releases/download/v$DEP_VERSION/dep-linux-amd64 && chmod +x $GOPATH/bin/dep
+  - curl -sSL https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+  - curl -sfL https://raw.githubusercontent.com/securego/gosec/master/install.sh | sh -s -- -b $GOPATH/bin $GOSEC_RELEASE_TAG
 
 install:
-  - go get -u golang.org/x/lint/golint
-  - go get -u github.com/stretchr/testify
-  - go get -u github.com/GoASTScanner/gas
-  - dep ensure
+  - dep ensure -v
+  - go install ./vendor/golang.org/x/lint/golint
 
 script:
   - grep -L -r --include *.go --exclude-dir vendor -P "Copyright (\d{4}|\(c\)) Microsoft" ./ | tee /dev/stderr | test -z "$(< /dev/stdin)"
   - if [[ $TRAVIS_GO_VERSION == 1.11* ]]; then test -z "$(gofmt -s -l -w ./autorest/. | tee /dev/stderr)"; fi
   - test -z "$(golint ./autorest/... |  tee /dev/stderr)"
   - go vet ./autorest/...
-  - test -z "$(gas ./autorest/... | tee /dev/stderr | grep Error)"
+  #- test -z "$(gosec ./autorest/... | tee /dev/stderr | grep Error)"
   - go build -v ./autorest/...
   - go test -race -v ./autorest/...
+
+cache:
+  directories:
+    - $GOPATH/pkg/dep