Bump freezegun from 0.3.14 to 0.3.15 (#7399)

Bumps [freezegun](https://github.com/spulec/freezegun) from 0.3.14 to 0.3.15.
- [Release notes](https://github.com/spulec/freezegun/releases)
- [Changelog](https://github.com/spulec/freezegun/blob/master/CHANGELOG)
- [Commits](spulec/freezegun@0.3.14...0.3.15)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: Ernest W. Durbin III <[email protected]>

Author: dependabot-preview[bot]

requirements/tests.txt

@@ -55,9 +55,9 @@ faker==4.0.1 \
 fakeredis==1.2.1 \
     --hash=sha256:6cc9ec865ece12e8f4dd260b4f7940fdf630b279aa66c29bb0b84132cf2e79fb \
     --hash=sha256:ec7290d601fa030b03e2a6016b8f5c719ad25db270a6110420e7438289ad22e8
-freezegun==0.3.14 \
-    --hash=sha256:10336fc80a235847c64033f9727f3847f37db4bd549be1d9f3b5ae0279256c69 \
-    --hash=sha256:6262de2f4bab671f7189bb8a0b9d8751da69a53f0b9813fb8f412681662d872a
+freezegun==0.3.15 \
+    --hash=sha256:82c757a05b7c7ca3e176bfebd7d6779fd9139c7cb4ef969c38a28d74deef89b2 \
+    --hash=sha256:e2062f2c7f95cc276a834c22f1a17179467176b624cc6f936e8bc3be5535ad1b
 idna==2.8 \
     --hash=sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407 \
     --hash=sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c