fix(api-docs): exclude root .config.yml from Redoc HTML generation

The find command in generate-api-docs.sh matched the Redocly root
config (api-docs/.config.yml) which has no apis key, causing yq to
fail with "cannot get keys of \!\!null".

api-docs/generate-api-docs.sh

@@ -167,7 +167,7 @@ echo "Step 2: Generating Redoc HTML"
 echo "========================================"
 
 # Iterate product directories that contain a .config.yml.
-for configPath in $(find . -name '.config.yml' -not -path '*/node_modules/*' -not -path '*/openapi/*'); do
+for configPath in $(find . -name '.config.yml' -not -path './.config.yml' -not -path '*/node_modules/*' -not -path '*/openapi/*'); do
   productDir=$(dirname "$configPath")
   # Strip leading ./
   productDir="${productDir#./}"