ci(pre-commit): Ignore j2 files for hadolint hook (#438)

* ci(pre-commit): Ignore j2 files for hadolint hook

* chore(template): Add spaces back into variable interpolation (to make it what it was before recent broken changes).

Author: NickLarsenNZ

.pre-commit-config.yaml

@@ -56,3 +56,4 @@ repos:
     rev: b3555ba9c2bfd9401e79f2f0da68dd1ae38e10c7 # 2.12.0
     hooks:
       - id: hadolint
+        exclude: \.j2$

template/docker/Dockerfile.j2

@@ -101,9 +101,10 @@ EOF
 COPY LICENSE /licenses/LICENSE
 
 COPY --from=builder /app/* /usr/local/bin/
-# {[% if operator.include_productconfig is undefined or operator.include_productconfig == true %}]
-COPY deploy/config-spec/properties.yaml /etc/stackable/{[operator.name}]/config-spec/properties.yaml
-# {[% endif %}]
+
+{[% if operator.include_productconfig is undefined or operator.include_productconfig == true %}]
+COPY deploy/config-spec/properties.yaml /etc/stackable/{[ operator.name }]/config-spec/properties.yaml
+{[% endif %}]
 
 USER ${STACKABLE_USER_UID}