test: fix box-py/args.test.py for new release policy

The test assumes that a version string looks like this
2.9.0-123-gabcabcababc. We want to append a flow string
after <major>.<minor>.<patch>. Fix the test accordingly.

Needed for #6183

test/box-py/args.result

@@ -44,7 +44,7 @@ tarantool --no-such-option --version
 tarantool: unrecognized option
 
 tarantool --version
-Tarantool 2.minor.patch-<rev>-<commit>
+Tarantool 2.minor.patch-<suffix>-<rev>-<commit>
 Target: platform <build>
 Build options: flags
 Compiler: cc
@@ -52,7 +52,7 @@ C_FLAGS: flags
 CXX_FLAGS: flags
 
 tarantool -v
-Tarantool 2.minor.patch-<rev>-<commit>
+Tarantool 2.minor.patch-<suffix>-<rev>-<commit>
 Target: platform <build>
 Build options: flags
 Compiler: cc
@@ -60,7 +60,7 @@ C_FLAGS: flags
 CXX_FLAGS: flags
 
 tarantool -V
-Tarantool 2.minor.patch-<rev>-<commit>
+Tarantool 2.minor.patch-<suffix>-<rev>-<commit>
 Target: platform <build>
 Build options: flags
 Compiler: cc
@@ -111,7 +111,7 @@ arg[3] => 2
 arg[4] => 3
 
 tarantool -V ${SOURCEDIR}/test/box-py/args.lua 1 2 3
-Tarantool 2.minor.patch-<rev>-<commit>
+Tarantool 2.minor.patch-<suffix>-<rev>-<commit>
 Target: platform <build>
 Build options: flags
 Compiler: cc

test/box-py/args.test.py

@@ -22,7 +22,7 @@ sys.stdout.push_filter("unrecognized option.*", "unrecognized option")
 server.test_option("-Z")
 server.test_option("--no-such-option")
 server.test_option("--no-such-option --version")
-sys.stdout.push_filter(".* (\d+)\.\d+\.\d+(-\d+-\w+)?", "Tarantool \\1.minor.patch-<rev>-<commit>")
+sys.stdout.push_filter(".* (\d+)\.\d+\.\d+(-\w+)?(-\d+)?(-\w+)?", "Tarantool \\1.minor.patch-<suffix>-<rev>-<commit>")
 sys.stdout.push_filter("Target: .*", "Target: platform <build>")
 sys.stdout.push_filter(".*Disable shared arena since.*\n", "")
 sys.stdout.push_filter("Build options: .*", "Build options: flags")