[clang-format] Recognize wait fork in Verilog (#132042)
before
```Verilog
wait fork
;
wait fork
;
wait fork
;
```
after
```Verilog
wait fork;
wait fork;
wait fork;
```
The `wait fork` statement should not start a block. Previously the
formatter treated the `fork` part as the start of a new block. Now the
problem is fixed.
