Bump syn from 2.0.12 to 2.0.15 (#31458)

* Bump syn from 2.0.12 to 2.0.15

Bumps [syn](https://github.com/dtolnay/syn) from 2.0.12 to 2.0.15.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/2.0.12...2.0.15)

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

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

* [auto-commit] Update all Cargo lock files

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: dependabot-buildkite <dependabot-buildkite@noreply.solana.com>

Cargo.lock

@@ -3279,7 +3279,7 @@ dependencies = [
  "proc-macro-crate 1.1.0",
  "proc-macro2 1.0.56",
  "quote 1.0.26",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -4663,7 +4663,7 @@ checksum = "291a097c63d8497e00160b166a967a4a79c64f3facdd01cbd7502231688d77df"
 dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -5767,7 +5767,7 @@ dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",
  "rustc_version 0.4.0",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -6879,7 +6879,7 @@ dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",
  "rustversion",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -7620,9 +7620,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.12"
+version = "2.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79d9531f94112cfc3e4c8f5f02cb2b58f72c97b7efd85f70203cc6d8efda5927"
+checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822"
 dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",

programs/sbf/Cargo.lock

@@ -3032,7 +3032,7 @@ dependencies = [
  "proc-macro-crate 1.1.3",
  "proc-macro2 1.0.56",
  "quote 1.0.26",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -4257,7 +4257,7 @@ checksum = "291a097c63d8497e00160b166a967a4a79c64f3facdd01cbd7502231688d77df"
 dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -4986,7 +4986,7 @@ dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",
  "rustc_version 0.4.0",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -6177,7 +6177,7 @@ dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",
  "rustversion",
- "syn 2.0.12",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -6767,9 +6767,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.12"
+version = "2.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79d9531f94112cfc3e4c8f5f02cb2b58f72c97b7efd85f70203cc6d8efda5927"
+checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822"
 dependencies = [
  "proc-macro2 1.0.56",
  "quote 1.0.26",