gateway: fix broken fuzzing build by upgrading golang version.

Author: sudiptob2

projects/gateway/Dockerfile

@@ -16,12 +16,12 @@
 
 FROM gcr.io/oss-fuzz-base/base-builder-go
 
-RUN wget https://go.dev/dl/go1.24.0.linux-amd64.tar.gz \
+RUN wget https://go.dev/dl/go1.25.3.linux-amd64.tar.gz \
     && mkdir temp-go \
     && rm -rf /root/.go/* \
-    && tar -C temp-go/ -xzf go1.24.0.linux-amd64.tar.gz \
+    && tar -C temp-go/ -xzf go1.25.3.linux-amd64.tar.gz \
     && mv temp-go/go/* /root/.go/ \
-    && rm -rf temp-go go1.24.0.linux-amd64.tar.gz \
+    && rm -rf temp-go go1.25.3.linux-amd64.tar.gz \
     && apt-get update \
     && apt-get install -y btrfs-progs libbtrfs-dev