docs: v3.4.1 changelog

Author: kozistr

docs/changelogs/v3.4.1.md

@@ -16,6 +16,7 @@
     * change default beta1, beta2 to 0.95 and 0.98 respectively
 * Skip adding `Lookahead` wrapper in case of `Ranger*` optimizers, which already have it in `create_optimizer()`. (#340)
 * Improved optimizer visualization. (#345)
+* Rename `pytorch_optimizer.optimizer.gc` to `pytorch_optimizer.optimizer.gradient_centralization` to avoid possible conflict with Python built-in function `gc`. (#349)
 
 ### Bug