GitHub CI: Update brew/apt-get before install

The macOS VMs have recently failed to install mactex, because the
download URL is not found.  This is probably because "brew update" is
not being called, to update the formulae.  On Ubuntu, where apt-get is
used to install, in most cases "apt-get update" was being called, but
there was one place (Toooba test) that was missing.

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

@@ -196,6 +196,7 @@ jobs:
 
       - name: Install dependencies
         run: |
+          brew update
           brew install ccache libelf
 
       - name: Download bsc

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

@@ -179,6 +179,7 @@ jobs:
 
       - name: Install dependencies
         run: |
+          sudo apt-get update
           sudo apt-get install -y ccache libelf-dev
 
       - name: Download bsc

.github/workflows/install_dependencies_doc_macos.sh

@@ -1,3 +1,5 @@
 #!/usr/bin/env bash
 
+brew update
+
 brew install mactex-no-gui

.github/workflows/install_dependencies_doc_ubuntu.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+
 apt-get update
 
 apt-get install -y \

.github/workflows/install_dependencies_macos.sh

@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+brew update
+
 # ccache is not required to build bsc, but we use it in build.yml to improve
 # the build performance by caching C++ obj files across multiple builds.
 brew install \

.github/workflows/install_dependencies_releasenotes_ubuntu.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+
 apt-get update
 
 apt-get install -y \

.github/workflows/install_dependencies_testsuite_macos.sh

@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+brew update
+
 brew install \
   ccache \
   deja-gnu \

.github/workflows/install_dependencies_ubuntu.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+
 apt-get update
 
 # ccache is not required to buid bsc, but we use it in build.yml to improve