bazel: update to v5.0.0 (#19706)

* bazel: update to v5.0.0
* Updated envoy-build-tools dependency
* Removed envoy_build_tools.patch
* Fixed java runtime version flag
* Fixed gcc test
* Remove outdated java flags
* Workaround attempt for test failures
* Incorporate review comments

Signed-off-by: Faseela K <faseela.k@est.tech>

Mirrored from https://github.com/envoyproxy/envoy @ bbcd487bd178ef5254545941ac369d944da41913

test/build/BUILD

@@ -5,6 +5,8 @@ licenses(["notice"])  # Apache 2
 api_cc_test(
     name = "build_test",
     srcs = ["build_test.cc"],
+    # Workaround for https://github.com/bazelbuild/bazel/issues/13819
+    linkstatic = True,
     deps = [
         "//envoy/api/v2:pkg_cc_proto",
         "//envoy/service/accesslog/v2:pkg_cc_proto",

test/validate/BUILD

@@ -5,6 +5,8 @@ licenses(["notice"])  # Apache 2
 api_cc_test(
     name = "pgv_test",
     srcs = ["pgv_test.cc"],
+    # Workaround for https://github.com/bazelbuild/bazel/issues/13819
+    linkstatic = True,
     deps = [
         "@envoy_api//envoy/config/accesslog/v3:pkg_cc_proto",
         "@envoy_api//envoy/config/bootstrap/v3:pkg_cc_proto",