Add conda-windows-base-x86_64 fetch to qt-windows-x86_64-6.6 and qt-w…

…indows-aarch64-6.6

- Added a new fetch named win-conda to both qt-windows-x86_64-6.6 and qt-windows-aarch64-6.6.
- This fetch is used to fetch the

taskcluster/kinds/toolchain/qt.yml

@@ -45,6 +45,8 @@ qt-windows-x86_64-6.6:
 qt-windows-aarch64-6.6:
     description: "Windows QT compile Task"
     fetches:
+        fetch:
+            - win-conda
         toolchain:
             - bundle-msvc
             - conda-windows-base-x86_64

taskcluster/scripts/toolchain/compile_qt_fancy.ps1

@@ -4,9 +4,10 @@
 
 . "$PSScriptRoot/../common/helpers.ps1"
 
+$ErrorActionPreference = "Stop"
 # Unpack Conda-Base
 Install-MiniConda
-$CONDA_DIR = resolve-path "$FETCHES_PATH\conda-win-base"
+$CONDA_DIR = resolve-path "$FETCHES_PATH\win-base"
 Start-Process -NoNewWindow "$CONDA_DIR\Scripts\conda-unpack.exe" -Wait
 conda activate $CONDA_DIR
 conda info