fix and improve how picky is cloned and installed

Our attempt at modifying the pull request previously
was not successful.  Trying again.

.github/workflows/test.yml

@@ -29,14 +29,14 @@ jobs:
       run: git clone https://github.com/lcn2/independ
     - name: install independ
       run: cd independ && sudo make install
-    - name: clone picky
-      run: git clone https://github.com/xexyl/picky
     - name: clone checknr
       run: git clone https://github.com/lcn2/checknr.git
     - name: install checknr
       run: cd checknr && sudo make install
+    - name: clone picky
+      run: git clone https://github.com/lcn2/picky
     - name: install picky
-      run: cd picky && make && sudo cp -p picky /usr/local/bin
+      run: cd picky && sudo make install
     - name: make
       run: make
     - name: make slow_release