move build Fuzzer into pre-commit

Author: hathach

.github/workflows/build_fuzzers.yml

@@ -34,4 +34,21 @@ jobs:
         # Install Ceedling
         gem install ceedling
         cd test/unit-test
-        ceedling test:all
+        ceedling test:all
+
+    - name: Fetch deps
+      run: |
+        sudo apt update && sudo apt install libc++abi-dev libc++-dev
+        fuzz_harness=$(ls -d test/fuzz/device/*/ test/fuzz/host/*/)
+        for h in $fuzz_harness
+        do
+          make $h get-deps
+        done
+
+    - name: Build Fuzzer
+      run: |
+        fuzz_harness=$(ls -d test/fuzz/device/*/ test/fuzz/host/*/)
+        for h in $fuzz_harness
+        do
+          make $h all
+        done

.github/workflows/pre-commit.yml

@@ -16,9 +16,9 @@ __check_defined = \
 
 #-------------- Fuzz harness compiler  ------------
 
-CC ?=  clang
-CXX ?= clang++
-GDB ?= gdb
+CC = clang
+CXX = clang++
+GDB = gdb
 OBJCOPY = objcopy
 SIZE = size
 MKDIR = mkdir