Update issue templates (#853)

Author: levkk

.github/ISSUE_TEMPLATE/something-is-broken.md

@@ -0,0 +1,26 @@
+---
+name: Something is broken
+about: Something isn't working as expected
+title: ''
+labels: ''
+assignees: ''
+type: Bug
+
+---
+
+**PgDog version**
+e.g., `v0.1.34` or `a41e41d1`
+
+**Description**
+What happened and what should have happened instead.
+
+**Logs**
+Attach trace logs, if the issue can be reproduced locally. To get trace logs, set `RUST_LOG=trace`, e.g.:
+
+```bash
+export RUST_LOG=trace
+cargo run
+```
+
+**Configuration**
+Include relevant (or all) PgDog settings from `pgdog.toml` and `users.toml`. Redact passwords and other sensitive info.

.github/ISSUE_TEMPLATE/something-is-missing.md

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+---
+name: Something is missing
+about: Missing feature that you need
+title: ''
+labels: ''
+assignees: ''
+type: Feature
+
+---
+
+Tell us what you'd like to be added to PgDog.