Bump geth to v1.15.3 (#6965)

- https://github.com/ethereum/go-ethereum/releases/tag/v1.15.3

Author: etan-status

scripts/geth_binaries.sh

@@ -19,7 +19,7 @@ source "${SCRIPTS_DIR}/bash_utils.sh"
 
 download_geth_stable() {
   if [[ ! -e "${STABLE_GETH_BINARY}" ]]; then
-    GETH_VERSION="1.15.1-b027a90a"  # https://geth.ethereum.org/downloads
+    GETH_VERSION="1.15.3-612c9e0f"  # https://geth.ethereum.org/downloads
     GETH_URL="https://gethstore.blob.core.windows.net/builds/"
 
     case "${OS}-${ARCH}" in