Windows build : Update to dependencies 6.2.0

These dependencies include :
- Binaries needed for building and running GafferCycles
- Helpful graphical USD tools that have been asked for that were not included in past Windows releases.
- `exrheader` which is needed for `GafferImageTest`

Author: ericmehl

.github/workflows/main.yml

@@ -70,15 +70,15 @@ jobs:
             os: windows-2019
             buildType: RELEASE
             options: .github/workflows/main/options.windows
-            dependenciesURL: https://github.com/hypothetical-inc/gafferDependencies/releases/download/6.1.0/gafferDependencies-6.1.0-Python3-windows.zip
+            dependenciesURL: https://github.com/hypothetical-inc/gafferDependencies/releases/download/6.2.0/gafferDependencies-6.2.0-Python3-windows.zip
             tests: testCore testCorePython testScene testImage testAlembic testUSD testVDB
             publish: true
 
           - name: windows-python3-debug
             os: windows-2019
             buildType: RELWITHDEBINFO
             options: .github/workflows/main/options.windows
-            dependenciesURL: https://github.com/hypothetical-inc/gafferDependencies/releases/download/6.1.0/gafferDependencies-6.1.0-Python3-windows.zip
+            dependenciesURL: https://github.com/hypothetical-inc/gafferDependencies/releases/download/6.2.0/gafferDependencies-6.2.0-Python3-windows.zip
             tests: testCore testCorePython testScene testImage testAlembic testUSD testVDB
             publish: false
 

Changes

@@ -1,3 +1,11 @@
+10.4.x.x (relative to 10.4.2.1)
+========
+
+Build
+-----
+
+- Updated Windows dependencies to 6.2.0.
+
 10.4.2.1 (relative to 10.4.2.0)
 ========