all: raise timeout defaults

This avoids timing out on systems running very slowly.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/system/pipewire_test.go

@@ -499,7 +499,7 @@ type stubPipeWireConn struct {
 }
 
 func (conn *stubPipeWireConn) MightBlock(timeout time.Duration) {
-	if timeout != 5*time.Second {
+	if timeout != pipewire.RoundtripTimeout {
 		panic("unexpected timeout " + timeout.String())
 	}
 }