Bump com.ibeetl:beetl from 3.15.10.RELEASE to 3.15.13.RELEASE (#5900)

Bumps com.ibeetl:beetl from 3.15.10.RELEASE to 3.15.13.RELEASE.

---
updated-dependencies:
- dependency-name: com.ibeetl:beetl
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -71,7 +71,7 @@ ext {
         //code generator
         "velocity"            : "org.apache.velocity:velocity-engine-core:2.3",
         "freemarker"          : "org.freemarker:freemarker:2.3.32",
-        "beetl"               : "com.ibeetl:beetl:3.15.10.RELEASE",
+        "beetl"               : "com.ibeetl:beetl:3.15.13.RELEASE",
         "swagger-annotations" : "io.swagger:swagger-annotations:1.6.12",
         "enjoy"               : "com.jfinal:enjoy:5.1.3",
         "logback-classic"     : "ch.qos.logback:logback-classic:1.4.11",