chore: add shot types for hapi 19 & 20

Ref: hapijs/bell#497

Author: Marsup

.github/workflows/ci-plugin.yml

@@ -34,6 +34,6 @@ jobs:
         run: npm install @hapi/hapi@${{ matrix.hapi }}
       - name: install hapi types
         if: matrix.hapi == '19' || matrix.hapi == '20'
-        run: npm install @types/hapi__hapi@${{ matrix.hapi }}
+        run: npm install @types/hapi__hapi@${{ matrix.hapi }} @types/hapi__shot@5
       - name: test
         run: npm test