fix(package): update sentence-splitter to 3.0.7

`sentence-splitter` 3.0.6, which this rule depends on, has infinite loop
bug (textlint-rule/sentence-splitter#9).
[3.0.7](https://github.com/azu/sentence-splitter/releases/tag/3.0.7)
solved the issue.

Author: 0x6b

package.json

@@ -32,7 +32,7 @@
     "rule"
   ],
   "dependencies": {
-    "sentence-splitter": "^3.0.6",
+    "sentence-splitter": "^3.0.7",
     "textlint-rule-helper": "^2.0.0",
     "textlint-util-to-string": "^2.1.1"
   },

yarn.lock

@@ -2429,9 +2429,9 @@ safe-buffer@^5.0.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
 
-sentence-splitter@^3.0.6:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/sentence-splitter/-/sentence-splitter-3.0.6.tgz#9e0ade1897f9fadd50feb35e0d9550e580f37aca"
+sentence-splitter@^3.0.7:
+  version "3.0.7"
+  resolved "https://registry.yarnpkg.com/sentence-splitter/-/sentence-splitter-3.0.7.tgz#80a1ab7e554c2e42b89c5911cae37654f2c33e82"
   dependencies:
     "@textlint/ast-node-types" "^3.0.0"
     concat-stream "^1.5.2"