Run example apps headless tests in CI

[FranjoMindek]

Fixes #2825

Currently, the workflow is:

1. We run the job which caches playwright browsers
2. We run job for each of the examples apps in parallel, each one restores playwright browsers, installs wasp-cli, and runs it's headless tests

graph TD;
P[playwright] --> A1[wasp-cli]
A1 -->A2[waspello]
P --> B1[wasp-cli]
B1 --> B2[waspleau]
P --> C1[wasp-cli]
C1 --> C2[websockets-realtime-voting]
P --> D1[wasp-cli]
D1 --> D2[TodoApp]
P --> E1[wasp-cli]
E1 --> E2[TodoAppTs]

Loading

I've wanted to do:

graph TD;
P[playwright] --> Wait{AND}
W[wasp-cli] --> Wait
Wait --> A[waspello]
Wait --> B[waspleau]
Wait --> C[websockets-realtime-voting]
Wait --> D[TodoApp]
Wait --> E[TodoAppTs]

Loading

While building the wasp-cli and caching the artifact is easy, the problem is the installation.
I'm not sure what's the easiest way to do it.

[infomiho]

@FranjoMindek just a heads up, there was this PR that tried to tackle the same thing - but I never finished it since running all the tests took too long: #2791

[FranjoMindek]

Any way to add comments here?
Any variant I've tried, it got inferred as part of "bash string" and errored.

At first I read the schema.prisma file but then remembered wasp info.
Seems more robust, the only problem is that we use ANSI colors in the output.

This resulted is some debugging since 'sqlite' == 'sqlite' was false because one sqlite was colored, and this can't be seen in the logs.

I want to leave a comment to explain sed -e 's/\x1b\[[0-9;]*m//g' \ which removes ANSI coloring chars.
But can't find out how.

[FranjoMindek]

Temp, or workflow won't trigger here, because the initial PR commits didn't include changes to examples/**

[FranjoMindek]

I'm following waspc/examples/todoApp convention, so if we detect .env.server.headless we use that env for running the headless tests.

This is because some apps require env vars to run properly.

[FranjoMindek]

I'm doubling down on "dev" here, so that the default is that we run headless tests in dev mode with "dev" wasp (wasp-cli).

I think this is more suitable for us.