Test only: play around with aarch64 CI workflow

[lanluo-nvidia]

image does not have envsubst, install it

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Type of change

Please delete options that are not relevant and/or add your own.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project (You can use the linters)
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas and hacks
• I have made corresponding changes to the documentation
• I have added tests to verify my fix or my feature
• New and existing unit tests pass locally with my changes
• I have added the relevant labels to my PR in so that relevant reviewers are notified

[github-actions]

There are some changes that do not conform to Python style guidelines:

--- /home/runner/work/TensorRT/TensorRT/.github/scripts/filter-matrix.py	2025-05-02 05:38:07.142927+00:00
+++ /home/runner/work/TensorRT/TensorRT/.github/scripts/filter-matrix.py	2025-05-02 05:38:29.092102+00:00
@@ -27,11 +27,11 @@
    filtered_includes = []
    for item in includes:
        if all(
            [
                item["python_version"] not in disabled_python_versions,
-                item["desired_cuda"] != cpu_tag
+                item["desired_cuda"] != cpu_tag,
            ]
        ):
            filtered_includes.append(item)
    filtered_matrix_dict = {}
    filtered_matrix_dict["include"] = filtered_includes