chore(deps): Bump torch in /backend/python/rerankers

Bumps torch from 2.3.1+cxx11.abi to 2.6.0+cu118.

---
updated-dependencies:
- dependency-name: torch
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

backend/python/rerankers/requirements-cpu.txt

@@ -1,4 +1,4 @@
 transformers
 accelerate
-torch==2.4.1
+torch==2.6.0+cu118
 rerankers[transformers]

backend/python/rerankers/requirements-cublas11.txt

@@ -1,5 +1,5 @@
 --extra-index-url https://download.pytorch.org/whl/cu118
 transformers
 accelerate
-torch==2.4.1+cu118
+torch==2.6.0+cu118
 rerankers[transformers]

backend/python/rerankers/requirements-cublas12.txt

@@ -1,4 +1,4 @@
 transformers
 accelerate
-torch==2.4.1
+torch==2.6.0+cu118
 rerankers[transformers]

backend/python/rerankers/requirements-hipblas.txt

@@ -1,5 +1,5 @@
 --extra-index-url https://download.pytorch.org/whl/rocm6.0
 transformers
 accelerate
-torch==2.4.1+rocm6.0
+torch==2.6.0+cu118
 rerankers[transformers]

backend/python/rerankers/requirements-intel.txt

@@ -2,7 +2,7 @@
 intel-extension-for-pytorch==2.3.110+xpu
 transformers
 accelerate
-torch==2.3.1+cxx11.abi
+torch==2.6.0+cu118
 oneccl_bind_pt==2.3.100+xpu
 rerankers[transformers]
 optimum[openvino]