ci: run apt-get update first

Author: eginhard

.github/workflows/tests.yml

@@ -64,6 +64,7 @@ jobs:
           sudo apt-get install espeak espeak-ng
       - name: Install dependencies
         run: |
+          sudo apt-get update
           sudo apt-get install -y --no-install-recommends git make gcc
           make system-deps
       - name: Install custom Trainer and/or Coqpit if requested
@@ -107,6 +108,7 @@ jobs:
           sudo apt-get install espeak espeak-ng
       - name: Install dependencies
         run: |
+          sudo apt-get update
           sudo apt-get install -y --no-install-recommends git make gcc
           make system-deps
       - name: Install custom Trainer and/or Coqpit if requested
@@ -150,6 +152,7 @@ jobs:
           sudo apt-get install espeak espeak-ng
       - name: Install dependencies
         run: |
+          sudo apt-get update
           sudo apt-get install -y --no-install-recommends git make gcc
           make system-deps
       - name: Install custom Trainer and/or Coqpit if requested
@@ -187,6 +190,7 @@ jobs:
           sudo apt-get install espeak espeak-ng
       - name: Install dependencies
         run: |
+          sudo apt-get update
           sudo apt-get install -y --no-install-recommends git make gcc
           make system-deps
       - name: Install custom Trainer and/or Coqpit if requested