fwk: Build on pr branches

BRANCH=lotus
TEST=With series, lotus now builds in github actions
BUG=https://frameworkmarketplace.atlassian.net/browse/HW-5739

Signed-off-by: Daniel Schaefer <dhs@frame.work>

Author: JohnAZoidberg

.github/workflows/lotus-azalea-build.yml

@@ -7,6 +7,7 @@ on:
       - azalea*
       - fwk*
       - framework*
+      - pr-*
     paths:
       - 'zephyr/program/framework/**'
       - '.github/workflows/**'