Use full path

Author: multiplemonomials

.github/workflows/compile.yml

@@ -31,8 +31,8 @@ jobs:
           python3 -m pip install --user --upgrade pyopenssl # Work around runtime error
           python3 -m pip install --user -r mcuboot/scripts/requirements.txt
           python3 -m pip install --user mcuboot/scripts
-          imgtool keygen -k signing-keys.pem -t rsa-2048
-          imgtool getpub -k signing-keys.pem > signing_keys.c
+          $HOME/.local/bin/imgtool keygen -k signing-keys.pem -t rsa-2048
+          $HOME/.local/bin/imgtool getpub -k signing-keys.pem > signing_keys.c
 
       - name: Build project for ${{ matrix.mbed_target }}
         run: |