Bump snakeyaml from 1.21 to 1.26 (#3646)

* Bump snakeyaml from 1.21 to 1.26

Bumps [snakeyaml](https://bitbucket.org/asomov/snakeyaml) from 1.21 to 1.26.
- [Commits](https://bitbucket.org/asomov/snakeyaml/branches/compare/snakeyaml-1.26..snakeyaml-1.21)

---
updated-dependencies:
- dependency-name: org.yaml:snakeyaml
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

* Update to Snakeyaml 1.29

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Brian de Alwis <[email protected]>

Author: dependabot[bot]

eclipse/ide-target-platform/category.xml

@@ -36,7 +36,7 @@
    <bundle id="org.apache.commons.commons-compress" version="0.0.0"/>
    <bundle id="jackson-core-asl" version="1.9.13"/>
    <bundle id="com.fasterxml.jackson.core.jackson-core" version="0.0.0"/>
-   <bundle id="org.yaml.snakeyaml" version="1.21"/>
+   <bundle id="org.yaml.snakeyaml" version="1.29"/>
    <bundle id="org.glassfish.javax.json" version="1.0.4"/>
 
    <!--

features/com.google.cloud.tools.eclipse.3rdparty.feature/feature.xml

@@ -106,7 +106,7 @@
          id="org.yaml.snakeyaml"
          download-size="0"
          install-size="0"
-         version="1.21.0"
+         version="1.29.0"
          unpack="false"/>
 
    <plugin

pom.xml

@@ -150,7 +150,7 @@
       <!-- bundle: org.yaml.snakeyaml -->
       <groupId>org.yaml</groupId>
       <artifactId>snakeyaml</artifactId>
-      <version>1.21</version>
+      <version>1.29</version>
     </dependency>
     <dependency>
       <!-- bundle: org.glassfish.javax.json -->