chore: put context keep dir within the bake definition

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

.github/workflows/validate.yml

@@ -41,5 +41,3 @@ jobs:
         uses: docker/bake-action@v6
         with:
           targets: ${{ matrix.target }}
-          set: |
-            *.args.BUILDKIT_CONTEXT_KEEP_GIT_DIR=1

docker-bake.hcl

@@ -1,3 +1,9 @@
+target "_common" {
+  args = {
+    BUILDKIT_CONTEXT_KEEP_GIT_DIR = 1
+  }
+}
+
 group "default" {
   targets = ["build"]
 }
@@ -11,42 +17,49 @@ group "validate" {
 }
 
 target "build" {
+  inherits = ["_common"]
   dockerfile = "dev.Dockerfile"
   target = "build-update"
   output = ["."]
 }
 
 target "build-validate" {
+  inherits = ["_common"]
   dockerfile = "dev.Dockerfile"
   target = "build-validate"
   output = ["type=cacheonly"]
 }
 
 target "format" {
+  inherits = ["_common"]
   dockerfile = "dev.Dockerfile"
   target = "format-update"
   output = ["."]
 }
 
 target "lint" {
+  inherits = ["_common"]
   dockerfile = "dev.Dockerfile"
   target = "lint"
   output = ["type=cacheonly"]
 }
 
 target "vendor" {
+  inherits = ["_common"]
   dockerfile = "dev.Dockerfile"
   target = "vendor-update"
   output = ["."]
 }
 
 target "vendor-validate" {
+  inherits = ["_common"]
   dockerfile = "dev.Dockerfile"
   target = "vendor-validate"
   output = ["type=cacheonly"]
 }
 
 target "test" {
+  inherits = ["_common"]
   dockerfile = "dev.Dockerfile"
   target = "test-coverage"
   output = ["./coverage"]