use sudo apt-get update

Author: JimBobSquarePants

.github/workflows/build-and-test.yml

@@ -74,7 +74,9 @@ jobs:
     steps:
       - name: Install libgdi+, which is required for tests running on ubuntu
         if: ${{ contains(matrix.options.os, 'ubuntu') }}
-        run: sudo apt-get -y install libgdiplus libgif-dev libglib2.0-dev libcairo2-dev libtiff-dev libexif-dev
+        run: |
+            sudo apt-get update
+            sudo apt-get -y install libgdiplus libgif-dev libglib2.0-dev libcairo2-dev libtiff-dev libexif-dev
 
       - name: Git Config
         shell: bash

.github/workflows/code-coverage.yml

@@ -20,7 +20,9 @@ jobs:
 
       - name: Install libgdi+, which is required for tests running on ubuntu
         if: ${{ contains(matrix.options.os, 'ubuntu') }}
-        run: sudo apt-get -y install libgdiplus libgif-dev libglib2.0-dev libcairo2-dev libtiff-dev libexif-dev
+        run: |
+            sudo apt-get update
+            sudo apt-get -y install libgdiplus libgif-dev libglib2.0-dev libcairo2-dev libtiff-dev libexif-dev
 
       - name: Git Config
         shell: bash