Install ccache

In a possibly futile attempt to speed up compilation

tasks/dev.yml

@@ -9,6 +9,7 @@
     - 'arduino'
     - 'arduino-cli'
     - 'arduino-builder'
+    - 'ccache'
     - 'hugo'
     - 'postgresql'
     - 'postman-bin'

tasks/packages.yml

@@ -59,3 +59,10 @@
   when: "item not in installed_packages.stdout_lines"
   with_items:
     - 'archstrike-keyring'
+
+- name: Use ccache in makepkg
+  lineinfile:
+    path: /etc/makepkg.conf
+    state: present
+    regexp: '^BUILDENV='
+    line: 'BUILDENV=(!distcc color ccache check !sign)'