build: INFENG-938: Tweak version string format (#10139)

Restore previous version tag format, which places a hyphen '-' between
the patch revision part and the remainder of the version string. So, for
example, instead of a string like v0.38.0rc3, we will look for
v0.38.0-rc3. The former is not SemVer-compliant, whereas the latteris.

This fixes an issue where Helm breaks when using release candidate
versions, because it expects the string to be
SemVer-compliant. Setuptools, by contrast, can munge the hyphenated
version into a more canonical PEP 440-compliant format, so we prefer the
new SemVer-compliant format instead.

.circleci/real_config.yml

@@ -68,17 +68,17 @@ release-and-rc-filters: &release-and-rc-filters
       - /.*/
   tags:
     only:
-      # Tags like: v2.5.0, v3.0.1+rc2
-      - /v\d+\.\d+\.\d+(rc\d+)?/
+      # Tags like: v2.5.0, v3.0.1-rc2
+      - /v\d+\.\d+\.\d+(-rc\d+)?/
 
 rc-filters: &rc-filters
   branches:
     ignore:
       - /.*/
   tags:
     only:
-      # Tags like: v2.5.0rc3
-      - /v\d+\.\d+\.\d+rc\d+/
+      # Tags like: v2.5.0-rc3
+      - /v\d+\.\d+\.\d+-rc\d+/
 
 release-filters: &release-filters
   branches: