chore: bump obikmer to 1.2.1 and disable obikindex default features

Updates the obikmer lockfile version to 1.2.1 and configures the obikindex dependency to explicitly disable default features. These are manifest and lockfile adjustments that do not modify source code or alter application behavior.

src/Cargo.lock

@@ -1793,7 +1793,7 @@ dependencies = [
 
 [[package]]
 name = "obikmer"
-version = "1.2.0"
+version = "1.2.1"
 dependencies = [
  "clap",
  "csv",

src/compare_sparse/Cargo.toml

@@ -8,7 +8,7 @@ name = "compare_sparse"
 path = "src/main.rs"
 
 [dependencies]
-obikindex = { path = "../obikindex" }
+obikindex = { path = "../obikindex", default-features = false }
 obicompactvec = { path = "../obicompactvec" }
 anyhow = "1"
 fastrand = "2"

src/obikmer/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "obikmer"
-version = "1.2.0"
+version = "1.2.2"
 edition = "2024"
 
 [[bin]]

src/obikphylo/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-obikindex        = { path = "../obikindex" }
+obikindex        = { path = "../obikindex", default-features = false }
 obikseq          = { path = "../obikseq" }
 obikpartitionner = { path = "../obikpartitionner" }
 obiskio          = { path = "../obiskio" }

src/obikphylo/src/siblings/tests.rs

@@ -1108,9 +1108,8 @@ fn diag_real_index_verify_kmer_resolution() {
     
     // The k-mer with A+other (mask 0b0011 = A+C)
     let kmer_str = "AGCTAGCTATTGAGCCTGGTCCGTATGAAAC";
-    let kmer = CanonicalKmer::from_str(kmer_str, k).unwrap();
-    let rc = kmer.revcomp();
-    let rc_str = kmer_to_string(&rc, k);
+    let kmer = canonical(kmer_str.as_bytes());
+    let rc_str = kmer_revcomp_to_string(&kmer, k);
     
     println!("kmer_forward={} kmer_revcomp={}", kmer_str, rc_str);
     println!("kmer partition={}", kmer.partition(n_parts));