[Conan] lock to v1

.github/workflows/github.yml

@@ -136,7 +136,7 @@ jobs:
     - name: Conan setup
       if: "${{ matrix.conan_profile != '' }}"
       run: |
-        pip3 install conan
+        pip3 install 'conan<2.0'
         conan profile new default --detect
         conan install . \
           --install-folder=conan-generated \

docs/conan.md

@@ -12,7 +12,7 @@ The following platforms are supported and known to work, others might require ch
 
 ## Getting started
 
-1. [Install Conan](https://docs.conan.io/en/latest/installation.html)
+1. [Install Conan](https://docs.conan.io/en/latest/installation.html). Currently we support only Conan v1, you can install it with `pip` like this: `pip3 install 'conan<2.0'`
 2. Execute in terminal: `conan profile new default --detect`
 
 ## Download dependencies