Fixed Dockerfile configuration to use esmodules instead of common js

CommonJS seems to be failing with

```
emmett_api    | SyntaxError: await is only valid in async functions and the top level bodies of modules
emmett_api    |     at wrapSafe (node:internal/modules/cjs/loader:1378:20)
emmett_api    |     at Module._compile (node:internal/modules/cjs/loader:1428:41)
emmett_api    |     at Module._extensions..js (node:internal/modules/cjs/loader:1548:10)
emmett_api    |     at Module.load (node:internal/modules/cjs/loader:1288:32)
emmett_api    |     at Module._load (node:internal/modules/cjs/loader:1104:12)
emmett_api    |     at Module.require (node:internal/modules/cjs/loader:1311:19)
emmett_api    |     at require (node:internal/modules/helpers:179:18)
emmett_api    |     at Object.<anonymous> (/app/dist/index.cjs:1:644)
emmett_api    |     at Module._compile (node:internal/modules/cjs/loader:1469:14)
emmett_api    |     at Module._extensions..js (node:internal/modules/cjs/loader:1548:10)
emmett_api    |
emmett_api    | Node.js v20.18.0
```

samples/webApi/expressjs-with-esdb/Dockerfile

@@ -42,6 +42,7 @@ WORKDIR /app
 
 # Copy published in previous stage binaries
 # from the `builder` image
+COPY --from=builder /app/package.json ./package.json
 COPY --from=builder /app/dist ./dist
 COPY --from=builder /app/node_modules ./node_modules
 
@@ -50,4 +51,4 @@ EXPOSE 3000
 
 # sets entry point command to automatically
 # run application on `docker run`
-ENTRYPOINT ["node", "./dist/index.cjs"]
+ENTRYPOINT ["node", "./dist/index.js"]

samples/webApi/expressjs-with-postgresql/Dockerfile

@@ -42,6 +42,7 @@ WORKDIR /app
 
 # Copy published in previous stage binaries
 # from the `builder` image
+COPY --from=builder /app/package.json ./package.json
 COPY --from=builder /app/dist ./dist
 COPY --from=builder /app/node_modules ./node_modules
 
@@ -50,4 +51,4 @@ EXPOSE 3000
 
 # sets entry point command to automatically
 # run application on `docker run`
-ENTRYPOINT ["node", "./dist/index.cjs"]
+ENTRYPOINT ["node", "./dist/index.js"]