Roll shaders-base from efb13717ecae to 5a31b090d8be

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/shaders-base-skia
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is aware of the problem.

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Tbr: [email protected]
Change-Id: Ib507ff299bf49bc88aead4c3e6b3bcbce017785b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/788599
Commit-Queue: skia-autoroll <[email protected]>
Bot-Commit: skia-autoroll <[email protected]>
diff --git a/WORKSPACE.bazel b/WORKSPACE.bazel
index 701ff7c..76479fb 100644
--- a/WORKSPACE.bazel
+++ b/WORKSPACE.bazel
@@ -589,7 +589,7 @@
 # Pulls the gcr.io/skia-public/shaders-base container.
 container_pull(
     name = "shaders-base",
-    digest = "sha256:efb13717ecae6bec0e8339f1c5cd6403fc89d0a7d9232b1ca12be7f0374fd305",
+    digest = "sha256:5a31b090d8bed9d282e6f54fd267260debd7bd28ef32b2288b1647a38da9c884",
     registry = "gcr.io",
     repository = "skia-public/shaders-base",
 )