Some of the arm64 workflow tests are mislabeled as x64 tests

[jmjaffe37]

Description:
While testing an update to one of setup-java's distributions, I stumbled across a mislabeled github workflow test. It mistakenly states that it tests on macos-x64 agents, but it actually works on macos-arm64 agents. Since this test was generated from a matrix, I suspect a number of other tests are in the same boat.

Test name: microsoft 25 (jdk-x64) - macos-latest
Link to proof line in logs: https://github.com/actions/setup-java/actions/runs/28541053114/job/84615774435?pr=1071#step:1:16

Task version:
Most recent commit off of main: b150355

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Repro steps:
Run the validation steps that are triggered once a new PR is made.
Test name: microsoft 25 (jdk-x64) - macos-latest
Link to proof line in logs: https://github.com/actions/setup-java/actions/runs/28541053114/job/84615774435?pr=1071#step:1:16

Expected behavior:
The test should be labeled with the correct architecture (arm64): microsoft 25 (jdk-arm64) - macos-latest

Actual behavior:
The test is labeled with the incorrect architecture )x64): microsoft 25 (jdk-x64) - macos-latest

[jmjaffe37]

Discovered in PR: #1071
mentioned in comment: #1071 (comment)