Update ecs-agent to 1.105.1

[remiflament]

Issue number:

N/A

Description of changes:

Bumps ecs-agent from 1.103.2 to 1.105.1 (two minor releases behind upstream):

• 1.104.0: adds ECS S3 Files integration, ECS_PROPAGATE_TASK_MEMORY_LIMIT_CGROUPV2 opt-in config, bumps containerd 1.7.29 -> 1.7.32
• 1.105.0: adds LogDriverVolumeConfiguration to the ACS Volume shape, updates Go to 1.25.11
• 1.105.1: populates ImageDigest for Service Connect sidecar containers, bumps containerd 1.7.32 -> 1.7.33, fixes environment file S3 key path validation

No breaking changes are documented in any of the three upstream release notes (1.104.0, 1.105.0, 1.105.1).

The amazon-vpc-cni-plugins submodule commit (a4e9ac07) is unchanged between v1.103.2 and v1.105.1, so no matching bump is needed in packages/amazon-vpc-cni-plugins.

Testing done:

• Downloaded the v1.105.1 source tarball and verified its sha512 against the one recorded in Cargo.toml.
• Applied all 6 existing Bottlerocket patches in this package against the new source with patch -p1 --dry-run; all apply cleanly with no offsets/fuzz.
• Did not run a full variant build (aws-ecs-2/3/4) locally — deferring to CI/maintainer testing given prior bumps of this package were reverted for runtime incompatibilities (Revert "ecs-agent: update from 1.91.2 to 1.97.0" #625, Revert ecs agent upgrades #808).

Terms of contribution:

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.