build(deps): Bump java-shared-configs version to 1.5.7 (#1870)

Thank you for opening a Pull Request! For general contributing guidelines, please refer to [contributing guide](https://togithub.com/googleapis/gapic-generator-java/blob/main/CONTRIBUTING.md)

Before submitting your PR, there are a few things you can do to make sure it goes smoothly:

- [x] Make sure to open an issue as a [bug/issue](https://togithub.com/googleapis/gapic-generator-java/issues/new/choose) before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)

Author: lqiu96

gapic-generator-java-pom-parent/pom.xml

@@ -15,7 +15,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.5.5</version>
+    <version>1.5.7</version>
     <relativePath/>
   </parent>
 

gax-java/gax-bom/pom.xml

@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.5.5</version>
+    <version>1.5.7</version>
     <relativePath/>
   </parent>
 

java-shared-dependencies/first-party-dependencies/pom.xml

@@ -15,7 +15,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.5.5</version>
+    <version>1.5.7</version>
     <relativePath />
   </parent>
 

java-shared-dependencies/third-party-dependencies/pom.xml

@@ -15,7 +15,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.5.5</version>
+    <version>1.5.7</version>
     <relativePath />
   </parent>
 

java-shared-dependencies/upper-bound-check/pom.xml

@@ -16,7 +16,7 @@
     <groupId>com.google.cloud</groupId>
     <!-- The shared config has RequireUpperBoundDeps enforcer rule -->
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.5.5</version>
+    <version>1.5.7</version>
     <relativePath/>
   </parent>