Bump to version 1.2.0 (#816)

Bump to version 1.2.0

Author: constantinpape

doc/installation.md

@@ -48,7 +48,7 @@ conda install -c pytorch -c conda-forge micro_sam "nifty=1.2.1=*_4" "protobuf<5"
 ```
 to install `micro_sam` in an existing environment and
 ```bash
-conda create -c conda-forge -n micro-sam micro_sam "nifty=1.2.1=*_4" "protobuf<5"
+conda create -c pytorch -c conda-forge -n micro-sam micro_sam "nifty=1.2.1=*_4" "protobuf<5"
 ```
 
 ## From source

micro_sam/__version__.py

@@ -1 +1 @@
-__version__ = "1.1.1"
+__version__ = "1.2.0"