[cipd] Bump client (+vpython) v2.1.0 (521b9b6477) => v2.2.2 (03693197fe).

Changes:
https://chromium.googlesource.com/infra/luci/luci-go/+log/9449d18..75f8e8f/cipd

Most notably, the new version understand SHA256 instance IDs.

R=iannucci@chromium.org, maruel@chromium.org
BUG=821194, 867729

Change-Id: Iebcf358ba460eeca2d39d3881104899014466e9c
Reviewed-on: https://chromium-review.googlesource.com/1152036Reviewed-by: Marc-Antoine Ruel <maruel@chromium.org>
Commit-Queue: Marc-Antoine Ruel <maruel@chromium.org>

cipd_client_version

-git_revision:521b9b64770d3b43a221b1e2bd277687616adacf
+git_revision:03693197fef4b7d6f2d717f99e9e616bb4f4d8a8

cipd_manifest.txt

@@ -12,7 +12,7 @@ $VerifiedPlatform linux-386 linux-ppc64 linux-ppc64le linux-s390x
 $VerifiedPlatform linux-arm64 linux-armv6l linux-mips64
 
 # vpython.
-infra/tools/luci/vpython/${platform} git_revision:b9c4670197dcefd8762d6e509302acd3efc6e303
+infra/tools/luci/vpython/${platform} git_revision:03693197fef4b7d6f2d717f99e9e616bb4f4d8a8
 
 # LUCI editor
 infra/tools/luci/led/${platform} git_revision:f8fd394bd671f4cf4da8064a1ee074018c275d15