Merge https://github.com/zmkfirmware/zmk into refactor_kconfig

.github/workflows/build.yml

@@ -10,6 +10,7 @@ jobs:
       matrix:
         board: [nice_nano, bluemicro840_v1, nrfmicro_13]
         shield:
+          - boardsource3x4
           - corne_left
           - corne_right
           - kyria_left
@@ -18,11 +19,13 @@ jobs:
           - lily58_right
           - iris_left
           - iris_right
+          - reviung41
           - romac
           - romac_plus
           - settings_reset
           - quefrency_left
           - quefrency_right
+          - nibble
         include:
           - board: proton_c
             shield: clueboard_california