ci: separate install-gotestsum step into its own config (#8327)

.circleci/config.yml

@@ -16,7 +16,6 @@ references:
 
   environment: &ENVIRONMENT
     TEST_RESULTS_DIR: *TEST_RESULTS_DIR
-    GOTESTSUM_RELEASE: 0.4.2
     EMAIL: noreply@hashicorp.com
     GIT_AUTHOR_NAME: circleci-consul
     GIT_COMMITTER_NAME: circleci-consul
@@ -24,6 +23,16 @@ references:
     BASH_ENV: .circleci/bash_env.sh
     VAULT_BINARY_VERSION: 1.2.2
 
+steps:
+  install-gotestsum: &install-gotestsum
+    name: install gotestsum
+    environment:
+      GOTESTSUM_RELEASE: 0.5.1
+    command: |
+      url=https://github.com/gotestyourself/gotestsum/releases/download
+      curl -sSL "${url}/v${GOTESTSUM_RELEASE}/gotestsum_${GOTESTSUM_RELEASE}_linux_amd64.tar.gz" | \
+      sudo tar -xz --overwrite -C /usr/local/bin gotestsum
+
 jobs:
   # lint consul tests
   lint-consul-retry:
@@ -95,12 +104,7 @@ jobs:
           at: /go/bin
       - run: sudo apt-get update && sudo apt-get install -y rsyslog
       - run: sudo service rsyslog start
-      - run: &install_gotestsum
-          name: Install gotestsum
-          command: |
-            url=https://github.com/gotestyourself/gotestsum/releases/download
-            curl -sSL "${url}/v${GOTESTSUM_RELEASE}/gotestsum_${GOTESTSUM_RELEASE}_linux_amd64.tar.gz" | \
-              sudo tar -xz --overwrite -C /usr/local/bin gotestsum
+      - run: *install-gotestsum
       - run: go mod download
       - run:
           name: go test
@@ -141,7 +145,7 @@ jobs:
       - checkout
       - attach_workspace:
           at: /go/bin
-      - run: *install_gotestsum
+      - run: *install-gotestsum
       - run:
           working_directory: api
           command: go mod download
@@ -176,7 +180,7 @@ jobs:
       - checkout
       - attach_workspace:
           at: /go/bin
-      - run: *install_gotestsum
+      - run: *install-gotestsum
       - run:
           working_directory: sdk
           command: go mod download
@@ -340,7 +344,7 @@ jobs:
           command: make pkg/linux_amd64/nomad
           working_directory: *NOMAD_WORKING_DIR
 
-      - run: *install_gotestsum
+      - run: *install-gotestsum
 
       # run integration tests
       - run: