Update Project.toml for GPU release

Author: nHackel

Project.toml

@@ -1,7 +1,7 @@
 name = "LinearOperatorCollection"
 uuid = "a4a2c56f-fead-462a-a3ab-85921a5f2575"
 authors = ["Tobias Knopp <tobias.knopp@tuhh.de> and contributors"]
-version = "1.2.1"
+version = "2.0.0"
 
 [deps]
 InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
@@ -45,4 +45,4 @@ LinearOperatorNFFTExt = ["NFFT", "FFTW"]
 LinearOperatorFFTWExt = "FFTW"
 LinearOperatorWaveletExt = "Wavelets"
 LinearOperatorGPUArraysExt = "GPUArrays"
-LinearOperatorRadonKAExt = "RadonKA"
+LinearOperatorRadonKAExt = "RadonKA"