Bump sqlx from 0.6.0 to 0.6.1 in /backend (#360)

Bumps [sqlx](https://github.com/launchbadge/sqlx) from 0.6.0 to 0.6.1.
- [Release notes](https://github.com/launchbadge/sqlx/releases)
- [Changelog](https://github.com/launchbadge/sqlx/blob/main/CHANGELOG.md)
- [Commits](https://github.com/launchbadge/sqlx/compare/v0.6.0...v0.6.1)

---
updated-dependencies:
- dependency-name: sqlx
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/Cargo.lock

@@ -869,6 +869,15 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
 
+[[package]]
+name = "dotenvy"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e851a83c30366fd01d75b913588e95e74a1705c1ecc5d58b1f8e1a6d556525f"
+dependencies = [
+ "dirs 4.0.0",
+]
+
 [[package]]
 name = "either"
 version = "1.7.0"
@@ -3247,9 +3256,9 @@ dependencies = [
 
 [[package]]
 name = "sqlx"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f82cbe94f41641d6c410ded25bbf5097c240cefdf8e3b06d04198d0a96af6a4"
+checksum = "788841def501aabde58d3666fcea11351ec3962e6ea75dbcd05c84a71d68bcd1"
 dependencies = [
  "sqlx-core",
  "sqlx-macros",
@@ -3257,9 +3266,9 @@ dependencies = [
 
 [[package]]
 name = "sqlx-core"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b69bf218860335ddda60d6ce85ee39f6cf6e5630e300e19757d1de15886a093"
+checksum = "8c21d3b5e7cadfe9ba7cdc1295f72cc556c750b4419c27c219c0693198901f8e"
 dependencies = [
  "ahash",
  "atoi",
@@ -3271,6 +3280,7 @@ dependencies = [
  "crc",
  "crossbeam-queue",
  "dirs 4.0.0",
+ "dotenvy",
  "either",
  "event-listener",
  "futures-channel",
@@ -3311,11 +3321,11 @@ dependencies = [
 
 [[package]]
 name = "sqlx-macros"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f40c63177cf23d356b159b60acd27c54af7423f1736988502e36bae9a712118f"
+checksum = "4adfd2df3557bddd3b91377fc7893e8fa899e9b4061737cbade4e1bb85f1b45c"
 dependencies = [
- "dotenv",
+ "dotenvy",
  "either",
  "heck",
  "hex",
@@ -3333,9 +3343,9 @@ dependencies = [
 
 [[package]]
 name = "sqlx-rt"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "874e93a365a598dc3dadb197565952cb143ae4aa716f7bcc933a8d836f6bf89f"
+checksum = "7be52fc7c96c136cedea840ed54f7d446ff31ad670c9dea95ebcb998530971a3"
 dependencies = [
  "once_cell",
  "tokio 1.20.1",