Bump version codes for 0.17 RC02 (release branch) (#6041)

## Explanation

Cherry-picks #6040 into the 0.17 release branch for a new RC02.

## Essential Checklist
- [ ] ~The PR title and explanation each start with "Fix #bugnum: " (If
this PR fixes part of an issue, prefix the title with "Fix part of
#bugnum: ...".)~
- [x] Any changes to
[scripts/assets](https://github.com/oppia/oppia-android/tree/develop/scripts/assets)
files have their rationale included in the PR explanation.
- [x] The PR follows the [style
guide](https://github.com/oppia/oppia-android/wiki/Coding-style-guide).
- [x] The PR does not contain any unnecessary code changes from Android
Studio

([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#undo-unnecessary-changes)).
- [x] The PR is made from a branch that's **not** called "develop" and
is up-to-date with "develop".
- [x] The PR is **assigned** to the appropriate reviewers
([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#clarification-regarding-assignees-and-reviewers-section)).

## For UI-specific PRs only
N/A -- Infra change.

Author: BenHenning

version.bzl

@@ -12,7 +12,7 @@ the app (that potentially contain changes or features that are not yet ready for
 MAJOR_VERSION = 0
 MINOR_VERSION = 17
 
-OPPIA_DEV_VERSION_CODE = 194
-OPPIA_ALPHA_VERSION_CODE = 193
-OPPIA_BETA_VERSION_CODE = 192
-OPPIA_GA_VERSION_CODE = 191
+OPPIA_DEV_VERSION_CODE = 198
+OPPIA_ALPHA_VERSION_CODE = 197
+OPPIA_BETA_VERSION_CODE = 196
+OPPIA_GA_VERSION_CODE = 195