Consider using a different way to exclude test from the race detector

[evan-forbes]

until we fix #1369, we have to continue to exclude some integration tests. This used to be done using the short flag, but is now done by using make.

in the past we've also used a build flag and init function. This allows for a similar dev ux to using a short flag like before, which might be beneficial since we can define which tests are skipped in the test itself instead of relying on an external bash script.

[rootulp]

celestia-node appears to use a !race build flag here and here that may be worth investigating.

[cmwaters]

Just as food for thought: celestia-app is basically single threaded so why do we need race tests at all?