Bump Abseil version used by GoogleTest

Making this change requires an update to the CI scripts to ignore
warnings coming from external repositories so we don't error on
deprecation warnings (RE2 has warnings about deprecated Mutex methods)

PiperOrigin-RevId: 853824282
Change-Id: Ic79663943d3b7c8cfa95e9a73b49a7ad761e1eae

MODULE.bazel

@@ -41,7 +41,7 @@ module(
 
 bazel_dep(
     name = "abseil-cpp",
-    version = "20250814.0",
+    version = "20260107.0",
 )
 bazel_dep(
     name = "platforms",

ci/linux-presubmit.sh

@@ -113,6 +113,7 @@ time docker run \
       --enable_bzlmod=false \
       --features=external_include_paths \
       --keep_going \
+      --per_file_copt=\"external/.*@-w\" \
       --show_timestamps \
       --test_output=errors \
       ${BAZEL_EXTRA_ARGS:-}"
@@ -138,6 +139,7 @@ for std in ${STD}; do
           --enable_bzlmod=true \
           --features=external_include_paths \
           --keep_going \
+          --per_file_copt=\"external/.*@-w\" \
           --show_timestamps \
           --test_output=errors \
           ${BAZEL_EXTRA_ARGS:-}"
@@ -167,6 +169,7 @@ for std in ${STD}; do
           --features=external_include_paths \
           --keep_going \
           --linkopt=\"--gcc-toolchain=/usr/local\" \
+          --per_file_copt=\"external/.*@-w\" \
           --show_timestamps \
           --test_output=errors \
           ${BAZEL_EXTRA_ARGS:-}"

ci/macos-presubmit.sh

@@ -81,6 +81,7 @@ for absl in 0 1; do
     --enable_bzlmod=true \
     --features=external_include_paths \
     --keep_going \
+    --per_file_copt="external/.*@-w" \
     --show_timestamps \
     --test_output=errors \
     ${BAZEL_EXTRA_ARGS:-}

ci/windows-presubmit.bat

@@ -65,6 +65,7 @@ IF EXIST "%KOKORO_GFILE_DIR%\distdir\googletest_vendor.tar.gz" (
   --copt=/WX ^
   --enable_bzlmod=true ^
   --keep_going ^
+  --per_file_copt=external/.*@/w ^
   --test_output=errors ^
   --test_tag_filters=-no_test_msvc2017 ^
   %VENDOR_FLAG%
@@ -79,6 +80,7 @@ IF %errorlevel% neq 0 EXIT /B 1
   --copt=/WX ^
   --enable_bzlmod=true ^
   --keep_going ^
+  --per_file_copt=external/.*@/w ^
   --test_output=errors ^
   --test_tag_filters=-no_test_msvc2017 ^
   %VENDOR_FLAG%

googletest_deps.bzl

@@ -17,9 +17,9 @@ def googletest_deps():
     if not native.existing_rule("abseil-cpp"):
         http_archive(
             name = "abseil-cpp",
-            sha256 = "9b2b72d4e8367c0b843fa2bcfa2b08debbe3cee34f7aaa27de55a6cbb3e843db",
-            strip_prefix = "abseil-cpp-20250814.0",
-            urls = ["https://github.com/abseil/abseil-cpp/releases/download/20250814.0/abseil-cpp-20250814.0.tar.gz"],
+            sha256 = "4c124408da902be896a2f368042729655709db5e3004ec99f57e3e14439bc1b2",
+            strip_prefix = "abseil-cpp-20260107.0",
+            urls = ["https://github.com/abseil/abseil-cpp/releases/download/20260107.0/abseil-cpp-20260107.0.tar.gz"],
         )
 
     if not native.existing_rule("bazel_features"):