Add Swift SDK for Android to swift_package_test workflow

[marcprux]

Pursuant to #83, this PR adds support for building with the Swift SDK for Android, following the precedents set by the Swift SDK for Wasm and the Static Linux SDK.

Unlike #106, this PR doesn't cover testing, which would necessitate installing and configuring an Android emulator.

[marcprux]

This PR will be ready to go once we have a new nightly Android SDK and some endpoint (like https://www.swift.org/api/v1/install/dev/main/android-sdk.json) to query the availability of the latest SDK.

@shahmishal ping me once these are in place and I can cleanup the FIXMEs and move the PR out of draft status.

[shahmishal]

This PR will be ready to go once we have a new nightly Android SDK and some endpoint (like https://www.swift.org/api/v1/install/dev/main/android-sdk.json) to query the availability of the latest SDK.

@shahmishal ping me once these are in place and I can cleanup the FIXMEs and move the PR out of draft status.

This should be resolved now. swiftlang/swift-org-website#1196

[marcprux]

This should be resolved now. swiftlang/swift-org-website#1196

It works!

The last remaining FIXMEs are around the planned trimming of the "-0.1" from the download artifact name. I assume we need to wait for the next successful nightly build for that?

[shahmishal]

LGTM, after we fix FIXME:

 # FIXME: restore to main when this PR is ready to be merged

[shahmishal]

The last remaining FIXMEs are around the planned trimming of the "-0.1" from the download artifact name. I assume we need to wait for the next successful nightly build for that?

We can fix this in a future PR.

[marcprux]

OK, this is ready to go. Android tests in swift_package_test.yml will fail until this is merged because it is now referencing the script at swiftlang/github-workflows/refs/heads/main (https://raw.githubusercontent.com/swiftlang/github-workflows/refs/heads/main/.github/workflows/scripts/install-and-build-with-sdk.sh).

If we need to iterate further, we can revert to using the PR's version at swift-android-sdk/github-workflows/refs/heads/android-workflow (https://raw.githubusercontent.com/swift-android-sdk/github-workflows/refs/heads/android-workflow/.github/workflows/scripts/install-and-build-with-sdk.sh)

[shahmishal]

Failures are expected because main branch does not have the script yet.