reporter-web-app: Disable unconditional caching for Yarn commands

For yet unknown reasons, restoring `node_modules` from Gradle's build
cache seems to occasionally trigger

    Error: Cannot find module '../scripts/build'

when running `rescripts` via `yarn`. Disable caching across builds for
these tasks completely to work around this issue.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>

reporter-web-app/build.gradle.kts

@@ -51,8 +51,6 @@ tasks.addRule("Pattern: yarn<Command>") {
 
             // Prepend the directory of the bootstrapped Node.js to the PATH environment.
             environment = environment + mapOf("PATH" to "$nodeBinDir${File.pathSeparator}${environment["PATH"]}")
-
-            outputs.cacheIf { true }
         }
     }
 }