[RAPPS-DB] Update GIMP to v2.8.22 for x86

It was downgraded to the ancient 2.6.12 version by Joachim previously because there was a bug with newer GTK+ versions, which caused UI to immediately freeze, but it's already fixed now. So now it works fine and can be updated in the applications manager again.
This is the last version for 32-bit Windows XP and Server 2003.
- Update download link for x86.
- Update SHA1.
- Update size in bytes.
- Improve description a bit. Specify Microsoft Visual C++ 2008 Redistributable, since GIMP actually requires that.
- Additionally, fix version numbers for amd64 and arm64.

Author: oleg-dubinskiy

gimp.txt

@@ -1,16 +1,17 @@
 [Section]
 Name = GIMP
-Version = 2.6.12
+Version = 2.8.22
 License = GPL
-Description = An acronym for GNU Image Manipulation Program. It is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
+Description = An acronym for GNU Image Manipulation Program. It is a freely distributed program for such tasks as photo retouching, image composition and image authoring. Requires Microsoft Visual C++ 2008 Redistributable.
 Category = 3
 RegName = WinGimp-2.0_is1
 URLSite = https://www.gimp.org/
-URLDownload = https://download.gimp.org/mirror/pub/gimp/v2.6/windows/gimp-2.6.12-i686-setup.exe
-SHA1 = 438ee0a517507396cdab6d814638d7313d0b99e0
-SizeBytes = 20924432
+URLDownload = https://download.gimp.org/gimp/v2.8/windows/gimp-2.8.22-setup.exe
+SHA1 = cf6fa10746a056ac728a83bd0121b83d645423de
+SizeBytes = 89579672
 
 [Section.amd64]
+Version = 2.8.10
 URLDownload = https://web.archive.org/web/20140625183541if_/http://partha.com/downloads/Gimp-2.8-10-64bit.exe
 SHA1 = 2bbe8b37468e61be1a72f1d53ec9c2dde0db8e41
 SizeBytes = 121149747
@@ -22,6 +23,7 @@ SHA1 = 919a5d351542a426d435de47496049afd7fa7628
 SizeBytes = 1247694269
 
 [Section.arm64]
+Version = 3.0.4
 URLDownload = https://download.gimp.org/gimp/v3.0/windows/gimp-3.0.4-setup.exe
 SHA1 = 2f7c0b96b67b09177fb0e8ebb2a9842a980b824a
 SizeBytes = 300178176