Fix version of Conan (don't use v2)

Author: jim-easterbrook

.github/workflows/build-windows.yml

@@ -47,8 +47,7 @@ jobs:
         working-directory: ./exiv2-Source/build
         run: |
           pip install --disable-pip-version-check wheel
-          pip install --disable-pip-version-check conan>=1.54.0
-          conan profile detect
+          pip install --disable-pip-version-check conan==1.54.0
           conan install .. -o unitTests=False -o iconv=True -b missing
 
       - name: Configure build