chore(workflows): update Deno to 2.6.x, Node to 25.x in CI configurations

Signed-off-by: Alberto Ricart <alberto@synadia.com>

Author: aricart

.github/workflows/consistency_checks.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        deno-version: [2.4.x]
+        deno-version: [2.6.x]
         module: [
           core,
           jetstream,

.github/workflows/deno_checks.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        deno-version: [2.4.x]
+        deno-version: [2.6.x]
         module: [core, jetstream, kv, obj, services, transport-deno]
 
     steps:

.github/workflows/node_checks.yml

@@ -8,8 +8,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        deno-version: [2.4.x]
-        node-version: [24.x]
+        deno-version: [2.6.x]
+        node-version: [25.x]
 
     steps:
       - name: Git Checkout Sources

.github/workflows/transport-node-test.yml

@@ -18,8 +18,8 @@ jobs:
   test:
     strategy:
       matrix:
-        deno-version: [2.4.x]
-        node-version: [24.x]
+        deno-version: [2.6.x]
+        node-version: [25.x]
 
     name: test node transport with local dependencies
     runs-on: ubuntu-latest

.github/workflows/unsafe_checks.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        deno-version: [2.4.x]
+        deno-version: [2.6.x]
 
     steps:
       - name: Git Checkout Sources