ci: use ubuntu-latest

Author: jmckenna

.github/workflows/build-linux.yml

@@ -17,18 +17,20 @@ jobs:
           run: |
             if [[ 'minimal,default,maximal' =~ ${{ matrix.option }} ]]
             then
-              sudo apt-get update -y
-              sudo apt-get upgrade -y
-              sudo apt-get install -y libcurl4-openssl-dev apache2-dev
+              sudo add-apt-repository -y ppa:ubuntugis/ppa
+              sudo apt update -y
+              sudo apt upgrade -y
+              sudo apt install -y libcurl4-openssl-dev apache2-dev
+              sudo apt install -y libpng-dev libjpeg-dev
             fi
             if [[ 'default,maximal' =~ ${{ matrix.option }} ]]
             then
-              sudo apt-get install -y libgdal-dev libfcgi-dev libpixman-1-dev
-              sudo apt-get install -y gdal-bin libxml2-utils
+              sudo apt install -y libgdal-dev libfcgi-dev libpixman-1-dev
+              sudo apt install -y gdal-bin libxml2-utils
             fi
             if [[ 'maximal' =~ ${{ matrix.option }} ]]
             then
-              sudo apt-get install -y libhiredis-dev libdb-dev libmapserver-dev libpcre2-dev
+              sudo apt install -y libhiredis-dev libdb-dev libmapserver-dev libpcre2-dev
             fi
 
         - name: Build MapCache