Update paddleslim requirement from <2.3.3,>=2.2.1 to >=2.2.1,<2.3.5 (#48)

Updates the requirements on [paddleslim](http://gitlab.baidu.com/PaddlePaddle/PaddleSlim) to permit the latest version.

---
updated-dependencies:
- dependency-name: paddleslim
  dependency-type: direct:production
...

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requirements.txt

@@ -15,7 +15,7 @@ opencv-contrib-python == 4.3.0.38
 openpyxl
 # paddlepaddle >= 2.2.0
 # paddlepaddle-gpu >= 2.2.0
-paddleslim >= 2.2.1,<2.3.3
+paddleslim >= 2.2.1,< 2.3.5
 pandas
 pycocotools
 scikit-learn == 0.23.2