Switch from probe-run to probe-rs-cli.

- probe-run screwed up the last release 2 weeks ago and it's still not fixed (issue 391). Doesn't look well maintained.
- Even when it's not broken, it lags behind probe-rs-cli in new chips support because it's slow in updating probe-rs.

examples/stm32f0/.cargo/config.toml

@@ -1,5 +1,5 @@
 [target.thumbv6m-none-eabi]
-runner = 'probe-run --chip STM32F091RCTX'
+runner = 'probe-rs-cli run --chip STM32F091RCTX'
 
 [build]
 target = "thumbv6m-none-eabi"