deps: deduplicate the version of libloading used

The changelog can be found here:
https://docs.rs/libloading/latest/libloading/changelog/r0_8_0/index.html

Cargo.lock

@@ -2177,16 +2177,6 @@ dependencies = [
  "cc",
 ]
 
-[[package]]
-name = "libloading"
-version = "0.7.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f"
-dependencies = [
- "cfg-if",
- "winapi",
-]
-
 [[package]]
 name = "libloading"
 version = "0.8.1"
@@ -2469,7 +2459,7 @@ dependencies = [
  "lazy_static",
  "libc",
  "libffi",
- "libloading 0.8.1",
+ "libloading",
  "log",
  "measureme",
  "rand",
@@ -3993,7 +3983,7 @@ dependencies = [
 name = "rustc_interface"
 version = "0.0.0"
 dependencies = [
- "libloading 0.7.4",
+ "libloading",
  "rustc-rayon",
  "rustc-rayon-core",
  "rustc_ast",
@@ -4123,7 +4113,7 @@ name = "rustc_metadata"
 version = "0.0.0"
 dependencies = [
  "bitflags 2.4.1",
- "libloading 0.7.4",
+ "libloading",
  "odht",
  "rustc_ast",
  "rustc_attr",

compiler/rustc_codegen_cranelift/Cargo.toml

@@ -19,7 +19,7 @@ gimli = { version = "0.28", default-features = false, features = ["write"]}
 object = { version = "0.32", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] }
 
 indexmap = "2.0.0"
-libloading = { version = "0.7.3", optional = true }
+libloading = { version = "0.8.0", optional = true }
 smallvec = "1.8.1"
 
 [patch.crates-io]

compiler/rustc_interface/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 # tidy-alphabetical-start
-libloading = "0.7.1"
+libloading = "0.8.0"
 rustc-rayon = { version = "0.5.0", optional = true }
 rustc-rayon-core = { version = "0.5.0", optional = true }
 rustc_ast = { path = "../rustc_ast" }

compiler/rustc_metadata/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2021"
 [dependencies]
 # tidy-alphabetical-start
 bitflags = "2.4.1"
-libloading = "0.7.1"
+libloading = "0.8.0"
 odht = { version = "0.3.1", features = ["nightly"] }
 rustc_ast = { path = "../rustc_ast" }
 rustc_attr = { path = "../rustc_attr" }