feat: Disable Express eTag response header for consistent FF behaviour across FF runtimes (#439)
feat: Disable Express eTag response header for consistent FF behaviour across FF runtimes (#439)

* Revert "Revert "Disable Express eTag response header for consistent FF behaviour across FF runtimes  (#433)" (#438)"

This reverts commit 957320bb0d6c6b7f12d3244c1d35d3a4ccf89680.

* lint: update newlines
GoogleCloudPlatform/functions-framework-nodejs,GoogleCloudPlatform/functions-framework-nodejs,GoogleCloudPlatform/functions-framework-nodejs