flake.lock: Update

Flake lock file updates:

• Updated input 'dream2nix':
    'github:nix-community/dream2nix/3c6e77a4fe54e02db2cc8237966a984dfcc9c58d?narHash=sha256-E8p65ytXxTC0pu79NFtLugCABiHf%2BW5he9WqaWau9zg%3D' (2024-05-31)
  → 'github:nix-community/dream2nix/8235c8b5b991e8ecebdfe514db5c335e8dc1f9b9?narHash=sha256-T58/492LP3qF%2BRPHoKQvd%2Bxme/u76u5oLuV0ysBjbvU%3D' (2024-06-15)
• Updated input 'fenix':
    'github:nix-community/fenix/e60215d7dc9cb8d3402e52b7a135aac5a3c73bac?narHash=sha256-Zx7u9iZ4jL3DL6tbhla%2BcuPbMDS0RLqIb8WeDMhz/eU%3D' (2024-06-04)
  → 'github:nix-community/fenix/ab655c627777ab5f9964652fe23bbb1dfbd687a8?narHash=sha256-ixopuTeTouxqTxfMuzs6IaRttbT8JqRW5C9Q/57WxQw%3D' (2024-06-08)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/09d7dcc143f33e6fc3ef0dd56f0e3fe1831fd56b?narHash=sha256-Ja8MhgCm2okC6Ajovr4r4n4YiEKevTWGEDD61ifHCpc%3D' (2024-06-03)
  → 'github:rust-lang/rust-analyzer/48bbdd6a74f3176987d5c809894ac33957000d19?narHash=sha256-%2BlRAmz92CNUxorqWusgJbL9VE1eKCnQQojglRemzwkw%3D' (2024-06-05)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/260ff391290a2b23958d04db0d3e7015c8417401?narHash=sha256-9Fbar%2BycxdfZ6HbwOCgD%2BjWG3du/12TFisKRQm4Zhfc%3D' (2024-06-04)
  → 'github:oxalica/rust-overlay/5265b8a1e1d2e370e8b45b557326b691aec7d163?narHash=sha256-92OO8XrQTvdvDtRi0BAkjTaoZXW5ORuvqdk677wW7ko%3D' (2024-06-17)