chore(catalog): record boot-3.5.3+rebuild.1

[github-actions]

Adds boot 3.5.3 → boot-3.5.3+rebuild.1 and the converted tree under markdown/boot/3.5.3/, published by the release workflow.

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Summary by cubic

Updates the catalog to record boot-3.5.3+rebuild.1 as the released tag for Spring Boot 3.5.3, and fills in the concrete version numbers in the converted Markdown docs that previously used {version-spring-boot} and {version-graal} placeholders.

• Catalog entry for boot 3.5.3 now points to the boot-3.5.3+rebuild.1 tag with its published timestamp.
• Replaced placeholders in the markdown/boot/3.5.3/ pages with the literal 3.5.3 version and the 22.3 GraalVM version.

^{Written for commit 0b4307c. Summary will update on new commits.}

[greptile-apps]

PR author is in the excluded authors list.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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TIP This summary will be updated as you push new changes.}

[amondnet]

Superseded by #247, which records all 47 Boot rebuilds in one commit.