loop: change current_datetime to current_date

So that we don't always invalidate the k/v cache.

Co-Authored-By: sketch <hello@sketch.dev>
Change-ID: s330e5fc0212d37d4k
diff --git a/loop/testdata/agent_loop.httprr b/loop/testdata/agent_loop.httprr
index ed46cff..82e0423 100644
--- a/loop/testdata/agent_loop.httprr
+++ b/loop/testdata/agent_loop.httprr
@@ -1,9 +1,9 @@
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+18170 2455
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@@ -546,7 +546,7 @@
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