Downgrade libxml2

The libxml2 version 2.9.12 breaks 158 unit tests in Magento.
Downgrading solves this.

Author: stevenvdp

7.0/scripts/install.sh

@@ -20,5 +20,8 @@ sed -e 's/\(max_nesting_level\).*/\1=1000/' \
 curl -sS -o /usr/local/bin/magerun https://files.magerun.net/n98-magerun2.phar
 chmod +x /usr/local/bin/magerun
 
+# downgrade libxml2, magento unit tests fail on libxml2 2.9.12
+apt-get install libxml2=2.9.4+dfsg1-7+deb10u2 -y --allow-downgrades
+
 # update permissions to allow rootless operation
 /usr/local/bin/permissions

7.1/scripts/install.sh

@@ -20,5 +20,8 @@ sed -e 's/\(max_nesting_level\).*/\1=1000/' \
 curl -sS -o /usr/local/bin/magerun https://files.magerun.net/n98-magerun2.phar
 chmod +x /usr/local/bin/magerun
 
+# downgrade libxml2, magento unit tests fail on libxml2 2.9.12
+apt-get install libxml2=2.9.4+dfsg1-7+deb10u2 -y --allow-downgrades
+
 # update permissions to allow rootless operation
 /usr/local/bin/permissions

7.2/scripts/install.sh

@@ -20,5 +20,8 @@ sed -e 's/\(max_nesting_level\).*/\1=1000/' \
 curl -sS -o /usr/local/bin/magerun https://files.magerun.net/n98-magerun2.phar
 chmod +x /usr/local/bin/magerun
 
+# downgrade libxml2, magento unit tests fail on libxml2 2.9.12
+apt-get install libxml2=2.9.4+dfsg1-7+deb10u2 -y --allow-downgrades
+
 # update permissions to allow rootless operation
 /usr/local/bin/permissions

7.3/scripts/install.sh

@@ -20,5 +20,8 @@ sed -e 's/\(max_nesting_level\).*/\1=1000/' \
 curl -sS -o /usr/local/bin/magerun https://files.magerun.net/n98-magerun2.phar
 chmod +x /usr/local/bin/magerun
 
+# downgrade libxml2, magento unit tests fail on libxml2 2.9.12
+apt-get install libxml2=2.9.4+dfsg1-7+deb10u2 -y --allow-downgrades
+
 # update permissions to allow rootless operation
 /usr/local/bin/permissions

7.4/scripts/install.sh

@@ -20,5 +20,8 @@ sed -e 's/\(max_nesting_level\).*/\1=1000/' \
 curl -sS -o /usr/local/bin/magerun https://files.magerun.net/n98-magerun2.phar
 chmod +x /usr/local/bin/magerun
 
+# downgrade libxml2, magento unit tests fail on libxml2 2.9.12
+apt-get install libxml2=2.9.4+dfsg1-7+deb10u2 -y --allow-downgrades
+
 # update permissions to allow rootless operation
 /usr/local/bin/permissions