Use latest available version of Conan in CI

appveyor.yml

@@ -54,7 +54,7 @@ install:
     - set PATH=C:\projects\deps\ninja;%PATH%
     - ninja --version
     - python -m pip install --upgrade pip
-    - pip3.exe install conan==1.24.1
+    - pip3.exe install conan==1.30.2
     - pip3.exe install lxml
     - cd %APPVEYOR_BUILD_FOLDER%
 

ci/install.sh

@@ -14,14 +14,14 @@ if [[ "$(uname -s)" == 'Linux' ]]; then
     sudo pip install virtualenv
     virtualenv conan
     source conan/bin/activate
-    pip install conan==1.22.0
+    pip install conan==1.30.2
     pip install codecov
     pip install lxml
 else
     sudo pip3 install virtualenv
     virtualenv conan
     source conan/bin/activate
-    pip3 install conan==1.22.0
+    pip3 install conan==1.30.2
     pip3 install codecov
     pip3 install lxml
 fi