feat: add schema for key rotation (#14662)

coderd/database/queries/crypto_keys.sql

@@ -0,0 +1,43 @@
+-- name: GetCryptoKeys :many
+SELECT *
+FROM crypto_keys
+WHERE secret IS NOT NULL;
+
+-- name: GetLatestCryptoKeyByFeature :one
+SELECT *
+FROM crypto_keys
+WHERE feature = $1
+ORDER BY sequence DESC
+LIMIT 1;
+
+-- name: GetCryptoKeyByFeatureAndSequence :one
+SELECT *
+FROM crypto_keys
+WHERE feature = $1
+  AND sequence = $2
+  AND secret IS NOT NULL;
+
+-- name: DeleteCryptoKey :one
+UPDATE crypto_keys
+SET secret = NULL, secret_key_id = NULL
+WHERE feature = $1 AND sequence = $2 RETURNING *;
+
+-- name: InsertCryptoKey :one
+INSERT INTO crypto_keys (
+    feature,
+    sequence,
+    secret,
+    starts_at,
+    secret_key_id
+) VALUES (
+    $1,
+    $2,
+    $3,
+    $4,
+    $5
+) RETURNING *;
+
+-- name: UpdateCryptoKeyDeletesAt :one
+UPDATE crypto_keys
+SET deletes_at = $3
+WHERE feature = $1 AND sequence = $2 RETURNING *;