Upgrade jni to 0.21.1 (#32216)

JNI methods in `jniapi` now have explicit lifetime
annotations to adapt it to the new `jni` version.

Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>

Cargo.lock

@@ -101,7 +101,7 @@ dependencies = [
  "bitflags 2.5.0",
  "cc",
  "cesu8",
- "jni 0.21.1",
+ "jni",
  "jni-sys",
  "libc",
  "log",
@@ -3119,20 +3119,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "jni"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24967112a1e4301ca5342ea339763613a37592b8a6ce6cf2e4494537c7a42faf"
-dependencies = [
- "cesu8",
- "combine",
- "jni-sys",
- "log",
- "thiserror",
- "walkdir",
-]
-
 [[package]]
 name = "jni"
 version = "0.21.1"
@@ -5727,7 +5713,7 @@ dependencies = [
  "getopts",
  "gl_generator",
  "ipc-channel",
- "jni 0.18.0",
+ "jni",
  "libc",
  "libloading 0.8.3",
  "libservo",