Roll Fuchsia Internal Images from 21.20240612.3.1 to 21.20240619.3.1

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/fuchsia-internal-images-chromium
Please CC chrome-fuchsia-gardener@grotations.appspotmail.com,chrome-fuchsia-team@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Cq-Include-Trybots: luci.chrome.try:fuchsia-internal-images-roller
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Disable-Retries: true
Change-Id: Ie455b22f3017fc42d3bd4858d1e3d3085a5dd927
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5643401
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diff --git a/build/fuchsia/linux_internal.sdk.sha1 b/build/fuchsia/linux_internal.sdk.sha1
index d8699fb..d02b142 100644
--- a/build/fuchsia/linux_internal.sdk.sha1
+++ b/build/fuchsia/linux_internal.sdk.sha1

@@ -1 +1 @@
-21.20240612.3.1
+21.20240619.3.1