refactor CircleCI configuration to set Lychee path in the run command

Author: raffaele-oplabs

.circleci/config.yml

@@ -87,13 +87,10 @@ jobs:
             - ~/.cargo/git
             - lychee/target
 
-      - run:
-          name: Add Lychee to PATH
-          command: echo "$HOME/project/lychee/target/release" >> $BASH_ENV
-
       - run:
           name: Run Lychee link checker
           command: |
+            export PATH=$PATH:$HOME/project/lychee/target/release
             cd docs
             lychee --config ./lychee.toml --quiet "./pages"