Fix docs build (#10461)

* Upgrade PIP to fix docs build

* Install python3 setuptools

.travis.yml

@@ -25,7 +25,7 @@ cache:
 
 before_install:
   - sudo apt-get -qq update
-  - sudo apt-get install -y snmp fping python3-pip
+  - sudo apt-get install -y snmp fping python3-pip python3-setuptools
   - mysql -e 'CREATE DATABASE librenms_phpunit_78hunjuybybh CHARACTER SET utf8 COLLATE utf8_unicode_ci;'
   - cp tests/config/config.test.php config.php
 

scripts/deploy-docs.sh

@@ -7,6 +7,7 @@ if [ "$EXECUTE_BUILD_DOCS" != "true" ]; then
     exit 0
 fi
 
+pip3 install --upgrade pip
 pip3 install --user mkdocs mkdocs-material pymdown-extensions
 pip3 install --user git+git://github.com/aleray/mdx_del_ins.git