doc: inconsistent indentation for list items

Items at same level should have consistent indentation level.
Addresses Markdownlint MD005 errors.

PR-URL: #29330
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/changelogs/CHANGELOG_IOJS.md

@@ -2241,7 +2241,7 @@ _Note: version **1.4.0** was tagged and built but not released. A libuv bug was
   [#7226](https://github.com/npm/npm/issues/7226) Ensure that all request
   settings are copied onto the agent.
   ([@othiym23](https://github.com/othiym23))
-   - [npm/fec4c96](https://github.com/npm/npm/commit/fec4c967ee235030bf31393e8605e9e2811f4a39)
+  - [npm/fec4c96](https://github.com/npm/npm/commit/fec4c967ee235030bf31393e8605e9e2811f4a39)
   Allow `--no-proxy` to override `HTTP_PROXY` setting in environment.
   ([@othiym23](https://github.com/othiym23))
   - [npm/9d61e96](https://github.com/npm/npm/commit/9d61e96fb1f48687a85c211e4e0cd44c7f95a38e)

doc/changelogs/CHANGELOG_V4.md

@@ -1283,8 +1283,8 @@ Semver Patch:
 Semver Minor:
 
 * **buffer**:
- * backport new buffer constructor APIs to v4.x (Сковорода Никита Андреевич) [#7562](https://github.com/nodejs/node/pull/7562)
- * backport --zero-fill-buffers cli option (James M Snell) [#5745](https://github.com/nodejs/node/pull/5745)
+  * backport new buffer constructor APIs to v4.x (Сковорода Никита Андреевич) [#7562](https://github.com/nodejs/node/pull/7562)
+  * backport --zero-fill-buffers cli option (James M Snell) [#5745](https://github.com/nodejs/node/pull/5745)
 * **build**:
   * add Intel Vtune profiling support (Chunyang Dai) [#5527](https://github.com/nodejs/node/pull/5527)
 * **repl**:

doc/guides/diagnostic-tooling-support-tiers.md

@@ -43,14 +43,14 @@ the following tiers.
       organization or website;
     * The tool must be open source.
 
- * Tier 3 - If possible its test suite
-   will be run at least nightly in the Node.js CI and issues opened for
-   failures.  Does not block shipping a release.
+* Tier 3 - If possible its test suite
+  will be run at least nightly in the Node.js CI and issues opened for
+  failures.  Does not block shipping a release.
 
- * Tier 4 - Does not block shipping a release.
+* Tier 4 - Does not block shipping a release.
 
- * Unclassified - tool/API is new or does not have the required testing in the
-   Node.js CI in order to qualify for a higher tier.
+* Unclassified - tool/API is new or does not have the required testing in the
+  Node.js CI in order to qualify for a higher tier.
 
 The choice of which tier a particular tool will be assigned to, will be a
 collaborative decision between Diagnostics WG and Release WG. Some of the