[ssh] use dotbot for chmodding ./ssh/config

This changes the place to do so from what was introduced in b553944b

.install.conf.yaml

@@ -42,4 +42,5 @@
       command: ./bin/Xresources-preprocess
       description: Preprocess Xresources.src so that xrdb doesn't have to.
       stderr: true
+    - [chmod 600 ./ssh/config, Ensure ./ssh/config only read/writable for owner]
 #   - git submodules update # after linking ~/.gitconfig

install.sh

@@ -13,7 +13,3 @@ git pull || echo "Pulling from remote failed"
 git submodule update --init --recursive "${DOTBOT_DIR}"
 
 "${BASEDIR}/${DOTBOT_DIR}/${DOTBOT_BIN}" -d "${BASEDIR}" -c "${CONFIG}" "${@}"
-
-
-# Make sure ssh/config is only read/writable for owner
-chmod 600 ssh/config