Rotate Access token with refresh token (#280)

Add method for rotating access token with refresh tokens
This will be useful for catching expired sessions and
offboarding users

Also added functions to handle secrets. They have to be revisited
as some tests didn't run on CI as they waited some user input, like password

.github/workflows/golang-test-linux.yml

@@ -11,18 +11,7 @@ jobs:
         uses: actions/setup-go@v2
         with:
           go-version: ${{ matrix.go-version }}
-#      - name: update limits.d
-#        run: |
-#          cat <<'EOF' | sudo tee -a /etc/security/limits.d/wt.conf
-#          root soft     nproc          65535
-#          root hard     nproc          65535
-#          root soft     nofile         65535
-#          root hard     nofile         65535
-#          $(whoami) soft     nproc          65535
-#          $(whoami) hard     nproc          65535
-#          $(whoami) soft     nofile         65535
-#          $(whoami) hard     nofile         65535
-#          EOF
+
 
       - name: Cache Go modules
         uses: actions/cache@v2
@@ -42,4 +31,4 @@ jobs:
         run: go mod tidy
 
       - name: Test
-        run: go test -exec sudo -timeout 5m -p 1 ./...
+        run: go test -exec 'sudo --preserve-env=CI' -timeout 5m -p 1 ./...