WebSQL: Update tests for non-secure context removal

WebSQL in non-secure context will be removed in M110.
This change updates tests in preparation for its removal.
This feature will be disabled by default in
https://crrev.com/c/3751714.

I2D: https://groups.google.com/u/1/a/chromium.org/g/blink-dev/c/xdcl4yc8Ihk
Launch: http://launch/4200890
Chromestatus: https://chromestatus.com/feature/5175124599767040

Bug: 1212492
Change-Id: I31b91ecbdf32b8d98f505e16b2d15bf6319c258f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4028846
Commit-Queue: Ayu Ishii <ayui@chromium.org>
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1071978}
diff --git a/speculation-rules/prerender/web-database.html b/speculation-rules/prerender/web-database.https.html
similarity index 100%
rename from speculation-rules/prerender/web-database.html
rename to speculation-rules/prerender/web-database.https.html