ref(android): rename Apollo3 to 'Apollo 3' and update callout

[lcian]

DESCRIBE YOUR PR

Updates "Apollo3" to be renamed to "Apollo 3" and its install paragraph for consistency.
Also updates the callout about the versions to point to the upcoming "Apollo 4" docs pages.
Comes after #12729

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3 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
develop-docs	⬜️ Ignored (Inspect)	Visit Preview		Mar 6, 2025 0:31am
sentry-docs	⬜️ Ignored (Inspect)	Visit Preview		Mar 6, 2025 0:31am
changelog	⬜️ Skipped (Inspect)			Mar 6, 2025 0:31am

[codecov]

Bundle Report

Changes will decrease total bundle size by 15 bytes (-0.0%) ⬇️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-server-cjs	10.93MB	-9 bytes (-0.0%) ⬇️
sentry-docs-client-array-push	9.39MB	-6 bytes (-0.0%) ⬇️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.71MB	-0.0%
../instrumentation.js	-3 bytes	1.04MB	-0.0%
9523.js	-3 bytes	1.02MB	-0.0%

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	865.35kB	-0.0%
static/chunks/1298-*.js	-3 bytes	401.61kB	-0.0%
static/RwX6pzvIqhi617SJqQMfX/_buildManifest.js (New)	578 bytes	578 bytes	100.0% 🚀
static/RwX6pzvIqhi617SJqQMfX/_ssgManifest.js (New)	77 bytes	77 bytes	100.0% 🚀
static/UzfSDbggriopW1jPxIfj-*.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️
static/UzfSDbggriopW1jPxIfj-*.js (Deleted)	-578 bytes	0 bytes	-100.0% 🗑️

[adinauer]

LGTM