[SPARK-40513] Add --batch to gpg command

### What changes were proposed in this pull request?
Add --batch to gpg command which essentially puts GnuPG into "API mode" instead of "UI mode".
Apply changes to 3.4.x dockerfile.

### Why are the changes needed?
Address DOI comments: docker-library/official-images#13089 (comment)

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
CI passed

Closes #51 from Yikun/batch.

Authored-by: Yikun Jiang <yikunkero@gmail.com>
Signed-off-by: Yikun Jiang <yikunkero@gmail.com>

Author: Yikun

3.4.0/scala2.12-java11-ubuntu/Dockerfile

@@ -46,8 +46,8 @@ RUN set -ex; \
     wget -nv -O spark.tgz "$SPARK_TGZ_URL"; \
     wget -nv -O spark.tgz.asc "$SPARK_TGZ_ASC_URL"; \
     export GNUPGHOME="$(mktemp -d)"; \
-    gpg --keyserver hkps://keys.openpgp.org --recv-key "$GPG_KEY" || \
-    gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys "$GPG_KEY"; \
+    gpg --batch --keyserver hkps://keys.openpgp.org --recv-key "$GPG_KEY" || \
+    gpg --batch --keyserver hkps://keyserver.ubuntu.com --recv-keys "$GPG_KEY"; \
     gpg --batch --verify spark.tgz.asc spark.tgz; \
     gpgconf --kill all; \
     rm -rf "$GNUPGHOME" spark.tgz.asc; \

3.4.1/scala2.12-java11-ubuntu/Dockerfile

@@ -46,8 +46,8 @@ RUN set -ex; \
     wget -nv -O spark.tgz "$SPARK_TGZ_URL"; \
     wget -nv -O spark.tgz.asc "$SPARK_TGZ_ASC_URL"; \
     export GNUPGHOME="$(mktemp -d)"; \
-    gpg --keyserver hkps://keys.openpgp.org --recv-key "$GPG_KEY" || \
-    gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys "$GPG_KEY"; \
+    gpg --batch --keyserver hkps://keys.openpgp.org --recv-key "$GPG_KEY" || \
+    gpg --batch --keyserver hkps://keyserver.ubuntu.com --recv-keys "$GPG_KEY"; \
     gpg --batch --verify spark.tgz.asc spark.tgz; \
     gpgconf --kill all; \
     rm -rf "$GNUPGHOME" spark.tgz.asc; \

Dockerfile.template

@@ -46,8 +46,8 @@ RUN set -ex; \
     wget -nv -O spark.tgz "$SPARK_TGZ_URL"; \
     wget -nv -O spark.tgz.asc "$SPARK_TGZ_ASC_URL"; \
     export GNUPGHOME="$(mktemp -d)"; \
-    gpg --keyserver hkps://keys.openpgp.org --recv-key "$GPG_KEY" || \
-    gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys "$GPG_KEY"; \
+    gpg --batch --keyserver hkps://keys.openpgp.org --recv-key "$GPG_KEY" || \
+    gpg --batch --keyserver hkps://keyserver.ubuntu.com --recv-keys "$GPG_KEY"; \
     gpg --batch --verify spark.tgz.asc spark.tgz; \
     gpgconf --kill all; \
     rm -rf "$GNUPGHOME" spark.tgz.asc; \