chore: Fix old format text

Author: lqiu96

.github/scripts/test_dependency_compatibility.sh

@@ -9,7 +9,7 @@
 # upper-bounds dependency file at the root of the repo.
 # There are two potential inputs to the script:
 # 1. -f {file}: Custom file/path for the upper-bound dependencies to test
-# 2. -l {deps_list}: Comma-separated list of dependencies to test (e.g. protobuf:4.31.0,guava:33.4.8-jre)
+# 2. -l {deps_list}: Comma-separated list of dependencies to test (e.g. protobuf=4.31.0,guava=33.4.8-jre)
 # Note: Do not include the `-D` prefix or `.version` suffix. Those values will be appended when generating
 # the maven command.
 #
@@ -25,7 +25,7 @@ set -ex
 function print_help() {
   echo "Unexpected input argument for this script."
   echo "Use -f {file} for the directory of the upper-bound dependencies file."
-  echo "Use -l {deps_list} for a comma-separated list of dependencies to test (Format: dep1:1.0,dep2:2.0)"
+  echo "Use -l {deps_list} for a comma-separated list of dependencies to test (Format: dep1=1.0,dep2=2.0)"
 }
 
 # Default to the upper bounds file in the root of the repo