Resolve "Fix(Paypro): Paypro produces invalid declaration file"

.gitlab-ci.yml

@@ -18,7 +18,15 @@ install:
   # Carry over the installed dependencies as artifacts in the pipeline.
   artifacts:
     paths:
+      # Hoisted / Shared dependencies.
       - node_modules/
+      # Include all the package-specific node_modules directories.
+      # Lerna will try to hoist these dependencies to the root node_modules directory, but if there are conflicts (versions, etc)
+      # then it will put them in the package-specific node_modules directories.
+      - packages/stack/node_modules/
+      - packages/primitives/node_modules/
+      - packages/json-payment-protocol-v2/node_modules/
+      - packages/docs/node_modules/
 
 # Verify that installed dependencies are free from known security issues.
 audit: